• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Recipes To Make

Recipes To Make

Easy recipes, made for real life.

  • Home
  • Recipe Index
  • About
  • Contact
Recipes To Make
  • Home
  • Recipe Index
  • About
  • Contact

Vegetable Casserole: Easy Recipe, Tips & Variations

Jump to Recipe·Print Recipe

Vegetable Casserole: the ultimate comfort food, reimagined! Forget everything you thought you knew about this classic dish. We’re not talking about bland, mushy vegetables swimming in a questionable sauce. This is a vibrant, flavorful, and satisfying vegetable casserole that will have even the most ardent veggie-skeptics begging for seconds.

Casseroles, in general, have a long and storied history, often associated with resourcefulness and making the most of available ingredients. They represent a culinary tradition of bringing people together, sharing a warm and hearty meal, and minimizing food waste. While the exact origins of the vegetable casserole are difficult to pinpoint, its spirit aligns perfectly with this history – a celebration of seasonal produce, baked to golden perfection.

So, why do people adore a good vegetable casserole? It’s simple! The combination of tender, perfectly cooked vegetables, a creamy (but not heavy!) sauce, and a crispy, golden topping is simply irresistible. Plus, it’s incredibly convenient. This dish is perfect for potlucks, family gatherings, or a cozy weeknight dinner. It’s also a fantastic way to sneak extra vegetables into your diet without sacrificing flavor. Get ready to experience a vegetable casserole that’s both nostalgic and refreshingly modern!

Vegetable Casserole

Ingredients:

  • 1 large onion, chopped
  • 2 cloves garlic, minced
  • 1 red bell pepper, chopped
  • 1 green bell pepper, chopped
  • 1 yellow bell pepper, chopped
  • 2 medium zucchini, chopped
  • 2 medium yellow squash, chopped
  • 1 (10-ounce) package frozen corn, thawed
  • 1 (10-ounce) package frozen peas, thawed
  • 1 (14.5-ounce) can diced tomatoes, undrained
  • 1 (15-ounce) can tomato sauce
  • 1 teaspoon dried oregano
  • 1 teaspoon dried basil
  • 1/2 teaspoon dried thyme
  • 1/4 teaspoon red pepper flakes (optional)
  • Salt and pepper to taste
  • 2 tablespoons olive oil
  • 1 cup vegetable broth
  • 1 cup shredded cheddar cheese
  • 1/2 cup bread crumbs
  • 2 tablespoons melted butter

Preparing the Vegetables:

Okay, let’s get started! First things first, we need to prep all those lovely veggies. This is the most time-consuming part, but trust me, it’s worth it!

  1. Chop the Onion and Garlic: Grab your large onion and chop it into small, even pieces. Nobody wants huge chunks of onion in their casserole! Then, mince your garlic. I like to use a garlic press, but you can finely chop it with a knife if you prefer.
  2. Prepare the Bell Peppers: Remove the seeds and membranes from your red, green, and yellow bell peppers. Chop them into bite-sized pieces, about the same size as your chopped onion. The variety of colors will make the casserole look so vibrant!
  3. Chop the Zucchini and Yellow Squash: Wash your zucchini and yellow squash thoroughly. Trim off the ends and chop them into similar-sized pieces as the bell peppers. No need to peel them! The skin is perfectly edible and adds a nice texture.
  4. Thaw the Corn and Peas: If you’re using frozen corn and peas (which I usually do for convenience), make sure to thaw them completely. You can run them under cold water in a colander to speed up the process. Drain them well before adding them to the casserole.

Sautéing the Vegetables:

Now that all our vegetables are prepped and ready to go, it’s time to sauté them. This step helps to soften the vegetables and bring out their natural flavors. It also helps to prevent the casserole from being too watery.

  1. Heat the Olive Oil: In a large skillet or Dutch oven, heat the olive oil over medium heat. Make sure the oil is shimmering before adding the vegetables.
  2. Sauté the Onion and Garlic: Add the chopped onion to the skillet and cook until it’s softened and translucent, about 5-7 minutes. Then, add the minced garlic and cook for another minute, until fragrant. Be careful not to burn the garlic!
  3. Add the Bell Peppers, Zucchini, and Yellow Squash: Add the chopped bell peppers, zucchini, and yellow squash to the skillet. Cook, stirring occasionally, until the vegetables are slightly softened, about 8-10 minutes.
  4. Add the Corn and Peas: Stir in the thawed corn and peas. Cook for another 2-3 minutes, until heated through.

Creating the Sauce:

A good sauce is essential for a delicious casserole. This simple tomato-based sauce is packed with flavor and will tie all the vegetables together perfectly.

  1. Add the Diced Tomatoes and Tomato Sauce: Pour in the undrained diced tomatoes and tomato sauce. Stir well to combine.
  2. Add the Seasonings: Add the dried oregano, dried basil, dried thyme, and red pepper flakes (if using). Season with salt and pepper to taste. Don’t be afraid to be generous with the seasonings! They really make a difference.
  3. Simmer the Sauce: Bring the sauce to a simmer, then reduce the heat to low and let it simmer for 10-15 minutes, stirring occasionally. This will allow the flavors to meld together and the sauce to thicken slightly.
  4. Add Vegetable Broth: Stir in the vegetable broth. This will add moisture and depth of flavor to the casserole.

Assembling the Casserole:

We’re almost there! Now it’s time to assemble the casserole and get it ready for the oven.

  1. Preheat the Oven: Preheat your oven to 375°F (190°C).
  2. Grease the Baking Dish: Grease a 9×13 inch baking dish with cooking spray or a little bit of olive oil. This will prevent the casserole from sticking to the dish.
  3. Pour the Vegetable Mixture into the Baking Dish: Pour the sautéed vegetable mixture into the prepared baking dish, spreading it out evenly.
  4. Top with Cheese: Sprinkle the shredded cheddar cheese evenly over the top of the vegetable mixture.

Creating the Breadcrumb Topping:

The breadcrumb topping adds a nice crunchy texture to the casserole. It’s super easy to make and adds a lot of flavor.

  1. Combine Bread Crumbs and Melted Butter: In a small bowl, combine the bread crumbs and melted butter. Toss to coat the bread crumbs evenly with the butter.
  2. Sprinkle Breadcrumb Topping over Cheese: Sprinkle the breadcrumb mixture evenly over the cheese.

Baking the Casserole:

Finally, it’s time to bake the casserole! The baking time will depend on your oven, so keep an eye on it.

  1. Bake the Casserole: Bake in the preheated oven for 20-25 minutes, or until the cheese is melted and bubbly and the breadcrumb topping is golden brown.
  2. Let it Rest: Remove the casserole from the oven and let it rest for 5-10 minutes before serving. This will allow the casserole to set slightly and make it easier to serve.

Serving Suggestions:

This vegetable casserole is delicious on its own, but it also pairs well with a variety of other dishes. Here are a few serving suggestions:

  • Serve it as a side dish with roasted chicken, grilled fish, or baked tofu.
  • Serve it as a vegetarian main course with a side salad and some crusty bread.
  • Add some cooked pasta or rice to the casserole to make it a more substantial meal.
  • Top it with a dollop of sour cream or Greek yogurt for extra creaminess.

Tips and Variations:

This recipe is very versatile, so feel free to experiment with different vegetables and seasonings. Here are a few tips and variations to get you started:

  • Use different vegetables: You can use any vegetables you like in this casserole. Some other good options include broccoli, cauliflower, carrots, mushrooms, and spinach.
  • Add protein: If you want to add some protein to the casserole, you can add cooked chicken, sausage, or tofu.
  • Use different cheese: You can use any type of cheese you like in this casserole. Some other good options include mozzarella, provolone, and Parmesan.
  • Add herbs: Fresh herbs can add a lot of flavor to this casserole. Try adding some chopped parsley, chives, or basil.
  • Make it spicy: If you like a little heat, add some extra red pepper flakes or a pinch of cayenne pepper.
  • Make it vegan: To make this casserole vegan, use vegan cheese and vegan butter. You can also substitute the vegetable broth with water.

Make Ahead Instructions:

This casserole can be made ahead of time and stored in the refrigerator for up to 2 days. To bake, simply add 10-15 minutes to the baking time.

Storage Instructions:

Leftover casserole can be stored in the refrigerator for up to 3 days. Reheat in the oven or microwave.

Nutritional Information (Approximate):

Please note that the nutritional information is an estimate and may vary depending on the specific ingredients used.

  • Calories: Approximately 300-350 per serving
  • Fat: 15-20 grams
  • Protein: 10-15 grams
  • Carbohydrates: 30-40 grams

Vegetable Casserole

Conclusion:

This isn’t just another side dish; it’s a vibrant, comforting, and utterly delicious Vegetable Casserole that deserves a permanent spot in your recipe rotation. From the medley of perfectly cooked vegetables to the creamy, cheesy sauce that binds it all together, every bite is a symphony of flavors and textures. I truly believe this recipe is a must-try, even for those who might typically shy away from vegetables. It’s a game-changer! What makes this casserole so special? It’s the perfect balance of simplicity and sophistication. It’s easy enough for a weeknight meal, yet elegant enough to grace your holiday table. The combination of fresh, seasonal vegetables ensures a burst of flavor in every mouthful, and the creamy sauce adds a touch of indulgence that will have everyone coming back for seconds. Plus, it’s incredibly versatile! Looking for serving suggestions? This Vegetable Casserole pairs beautifully with roasted chicken, grilled steak, or even a simple piece of fish. It’s also a fantastic vegetarian main course when served with a side of crusty bread for soaking up all that delicious sauce. For a heartier meal, consider adding cooked quinoa or lentils directly into the casserole before baking. But the fun doesn’t stop there! Feel free to get creative with variations. Swap out some of the vegetables for your favorites – broccoli, cauliflower, or even Brussels sprouts would be fantastic additions. Experiment with different cheeses; Gruyere, Fontina, or even a sharp cheddar would all add a unique twist. For a spicier kick, add a pinch of red pepper flakes to the sauce or incorporate some diced jalapeños into the vegetable mixture. You could even top it with toasted breadcrumbs for added crunch! I’ve made this casserole countless times, and each time it’s a hit. It’s a crowd-pleaser that’s guaranteed to disappear quickly. It’s also a great way to sneak in extra vegetables for picky eaters (trust me, they won’t even notice!). The beauty of this recipe lies in its adaptability. You can easily adjust the ingredients and seasonings to suit your own taste preferences and dietary needs. So, what are you waiting for? Grab your apron, gather your ingredients, and get ready to create a culinary masterpiece. I’m confident that you’ll love this Vegetable Casserole as much as I do. It’s a recipe that’s sure to become a family favorite for years to come. And now, for the most important part: I want to hear about your experience! Did you try this recipe? What variations did you make? What did your family and friends think? Share your photos and stories in the comments below. I can’t wait to see your creations and hear your feedback. Happy cooking! I hope you enjoy this recipe as much as I do, and I look forward to hearing all about your culinary adventures with this fantastic dish. Don’t be shy – let me know how it turns out! Your feedback helps me improve and create even more delicious recipes for you to enjoy. So go ahead, give it a try, and let’s get cooking!

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Vegetable Casserole: Easy Recipe, Tips & Variations


  • Total Time: 70 minutes
  • Yield: 6–8 servings 1x
Print Recipe
Pin Recipe

Description

A colorful and flavorful vegetable casserole packed with fresh veggies, a simple tomato sauce, and a crunchy breadcrumb topping. Perfect as a side dish or vegetarian main course!


Ingredients

Scale
  • 1 large onion, chopped
  • 2 cloves garlic, minced
  • 1 red bell pepper, chopped
  • 1 green bell pepper, chopped
  • 1 yellow bell pepper, chopped
  • 2 medium zucchini, chopped
  • 2 medium yellow squash, chopped
  • 1 (10-ounce) package frozen corn, thawed
  • 1 (10-ounce) package frozen peas, thawed
  • 1 (14.5-ounce) can diced tomatoes, undrained
  • 1 (15-ounce) can tomato sauce
  • 1 teaspoon dried oregano
  • 1 teaspoon dried basil
  • 1/2 teaspoon dried thyme
  • 1/4 teaspoon red pepper flakes (optional)
  • Salt and pepper to taste
  • 2 tablespoons olive oil
  • 1 cup vegetable broth
  • 1 cup shredded cheddar cheese
  • 1/2 cup bread crumbs
  • 2 tablespoons melted butter

Instructions

  1. Prepare the Vegetables: Chop the onion, garlic, bell peppers, zucchini, and yellow squash. Thaw the corn and peas.
  2. Sauté the Vegetables: Heat olive oil in a large skillet or Dutch oven over medium heat. Add onion and cook until softened (5-7 minutes). Add garlic and cook until fragrant (1 minute). Add bell peppers, zucchini, and yellow squash; cook until slightly softened (8-10 minutes). Stir in corn and peas; cook until heated through (2-3 minutes).
  3. Create the Sauce: Add diced tomatoes (undrained) and tomato sauce to the skillet. Stir in oregano, basil, thyme, red pepper flakes (if using), salt, and pepper. Bring to a simmer, then reduce heat to low and simmer for 10-15 minutes, stirring occasionally. Stir in vegetable broth.
  4. Assemble the Casserole: Preheat oven to 375°F (190°C). Grease a 9×13 inch baking dish. Pour the vegetable mixture into the dish, spreading evenly. Top with shredded cheddar cheese.
  5. Create the Breadcrumb Topping: In a small bowl, combine bread crumbs and melted butter. Toss to coat. Sprinkle breadcrumb mixture evenly over the cheese.
  6. Bake the Casserole: Bake in the preheated oven for 20-25 minutes, or until the cheese is melted and bubbly and the breadcrumb topping is golden brown.
  7. Let it Rest: Remove from oven and let rest for 5-10 minutes before serving.

Notes

  • Vegetable Variations: Feel free to substitute other vegetables like broccoli, cauliflower, carrots, mushrooms, or spinach.
  • Add Protein: Add cooked chicken, sausage, or tofu for a heartier meal.
  • Cheese Options: Use mozzarella, provolone, or Parmesan instead of cheddar.
  • Herb Boost: Add fresh herbs like parsley, chives, or basil.
  • Spice it Up: Add extra red pepper flakes or cayenne pepper for heat.
  • Vegan Option: Use vegan cheese and butter, and substitute water for vegetable broth.
  • Make Ahead: Assemble the casserole ahead of time and store in the refrigerator for up to 2 days. Add 10-15 minutes to the baking time.
  • Storage: Leftover casserole can be stored in the refrigerator for up to 3 days. Reheat in the oven or microwave.
  • Prep Time: 25 minutes
  • Cook Time: 45 minutes

Did you make this recipe?

Share a photo and tag us — we can’t wait to see what you’ve made!

« Previous Post
Pineapple Heaven Cheesecake Dessert: A Tropical Delight!
Next Post »
Blueberry Cheesecake Swirl Cookies: Recipe & Baking Tips

If you enjoyed this…

Dinner

Meat Lovers Pizza Casserole: The Ultimate Comfort Food Recipe

Dinner

Healthy Pulled Pork: The Ultimate Guide to Delicious & Guilt-Free BBQ

Dinner

Spicy Squash Pad Thai: A Flavorful Twist on a Classic Dish

Primary Sidebar

Browse by Diet

AppetizerAppetizerBreakfastBreakfastDinnerDinnerLunchLunchDessertDessert

Chicken Tetrazzini: The Ultimate Comfort Food Recipe

Vegan Melon Cucumber Celery Shake: The Ultimate Refreshing Recipe

Dr Pepper Pulled Pork: The Ultimate Recipe for BBQ Perfection

  • Recipe Index
  • About
  • Contact