Introduction
Welcome to the world of delicious and comforting cheesy baked vegetable casserole! This hearty dish is a perfect way to incorporate a variety of vegetables into your meal while satisfying your taste buds with the gooey goodness of melted cheese. Whether you’re a vegetarian looking for a wholesome main course or a cheese lover searching for a scrumptious side dish, this cheesy baked vegetable casserole is sure to become a family favorite.
Ingredients
To prepare this delightful cheesy baked vegetable casserole, you will need the following ingredients:
For the Casserole:
– 2 cups broccoli florets
– 2 cups cauliflower florets
– 2 medium carrots, sliced
– 1 red bell pepper, diced
– 1 yellow bell pepper, diced
– 1 zucchini, sliced
– 1 yellow squash, sliced
– 1 cup shredded cheddar cheese
– 1 cup shredded mozzarella cheese
– 1/2 cup grated Parmesan cheese
– 1/4 cup chopped fresh parsley
– Salt and pepper to taste
For the Sauce:
– 2 tablespoons butter
– 2 tablespoons all-purpose flour
– 2 cups milk
– 1/2 teaspoon garlic powder
– 1/2 teaspoon onion powder
– 1/2 teaspoon dried thyme
– 1/2 teaspoon dried oregano
– Salt and pepper to taste
Steps
Now that we have gathered all the ingredients, let’s dive into the step-by-step process of making this cheesy baked vegetable casserole:
Step 1: Prepare the Vegetables

Start by preheating your oven to 375°F (190°C). In a large pot of boiling water, blanch the broccoli, cauliflower, carrots, and bell peppers for about 3-4 minutes until they are slightly tender. Drain the vegetables and set them aside.
Step 2: Make the Sauce
In a medium saucepan, melt the butter over medium heat. Add the flour and whisk continuously for about 2 minutes until the mixture turns golden brown. Gradually pour in the milk while whisking to avoid any lumps. Stir in the garlic powder, onion powder, dried thyme, dried oregano, salt, and pepper. Cook the sauce for 5-6 minutes until it thickens and coats the back of a spoon.
Step 3: Assemble the Casserole
Grease a baking dish with butter or cooking spray. Spread half of the blanched vegetables on the bottom of the dish. Drizzle half of the sauce over the vegetables and sprinkle half of the cheddar, mozzarella, and Parmesan cheeses. Repeat the layers with the remaining vegetables, sauce, and cheeses.
Step 4: Bake and Serve
Cover the baking dish with foil and bake for 20 minutes. Then, remove the foil and bake for an additional 10-15 minutes until the cheese is bubbly and golden brown. Garnish with fresh parsley before serving. Let the casserole cool for a few minutes, and then dig in!
Variations
The beauty of this cheesy baked vegetable casserole is its versatility. You can customize it according to your taste preferences or the ingredients you have on hand. Here are a few variations to try:
1. Mediterranean Twist
Add some Mediterranean flavors to your casserole by incorporating ingredients like sun-dried tomatoes, Kalamata olives, and crumbled feta cheese. Sprinkle some dried basil and oregano for an extra burst of flavor.
2. Tex-Mex Delight
Give your casserole a Tex-Mex twist by adding a can of drained black beans and a cup of frozen corn kernels. Layer some sliced jalapenos and top it off with a handful of crushed tortilla chips for a crunchy kick.
3. Italian-Inspired
For an Italian-inspired casserole, mix in some sautéed mushrooms, sliced black olives, and diced tomatoes. Replace the cheddar and mozzarella cheeses with a blend of Italian cheeses like provolone, fontina, and Romano.
Tips
Here are a few tips to ensure your cheesy baked vegetable casserole turns out perfectly every time:
1. Don’t Overcook the Vegetables
Blanching the vegetables for a few minutes helps them retain their crunch and vibrant colors. Avoid overcooking them, as they will continue to cook in the oven.
2. Experiment with Cheese
Feel free to experiment with different types of cheese to create unique flavor combinations. Gouda, Swiss, or Monterey Jack can add a delightful twist to your casserole.
3. Add a Crunchy Topping
If you enjoy a crunchy texture, sprinkle some breadcrumbs or crushed crackers on top of the casserole before baking. It adds an extra layer of deliciousness.
Conclusion
Indulge in the creamy, cheesy goodness of a homemade baked vegetable casserole. This versatile dish allows you to incorporate various vegetables and personalize it to suit your taste. Whether you’re serving it as a side dish or a main course, the cheesy baked vegetable casserole is bound to impress your family and friends with its irresistible flavors and wholesome ingredients.
FAQs
1. Can I prepare the casserole in advance?
Absolutely! You can assemble the casserole a day ahead and refrigerate it until you’re ready to bake. Just remember to increase the baking time slightly if you’re placing it in the oven directly from the refrigerator.
2. Can I freeze the leftovers?
Yes, you can freeze the leftovers in an airtight container for up to 3 months. When you’re ready to enjoy them, simply thaw the casserole in the refrigerator overnight and reheat it in the oven until heated through.
3. Can I use frozen vegetables instead of fresh ones?
While fresh vegetables are recommended for this recipe, you can use frozen vegetables if that’s what you have on hand. Just make sure to thaw and drain them before blanching.
4. Can I add meat to the casserole?
Absolutely! If you’re a meat lover, feel free to add cooked chicken, ground beef, or crumbled sausage to the casserole for an extra protein boost. Simply layer the meat along with the vegetables.
5. Can I make this casserole gluten-free?
Yes, you can make this casserole gluten-free by using a gluten-free flour blend in the sauce and ensuring that all other ingredients, such as the cheeses and seasonings, are also gluten-free.

Cheesy Baked Vegetable Casserole
A delicious and comforting cheesy baked vegetable casserole filled with a variety of vegetables and topped with melted cheddar, mozzarella, and Parmesan cheeses.
Ingredients
- 2 cups broccoli florets
- 2 cups cauliflower florets
- 2 medium carrots, sliced
- 1 red bell pepper, diced
- 1 yellow bell pepper, diced
- 1 zucchini, sliced
- 1 yellow squash, sliced
- 1 cup shredded cheddar cheese
- 1 cup shredded mozzarella cheese
- 1/2 cup grated Parmesan cheese
- 1/4 cup chopped fresh parsley
- Salt and pepper to taste
- 2 tablespoons butter
- 2 tablespoons all-purpose flour
- 2 cups milk
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- 1/2 teaspoon dried thyme
- 1/2 teaspoon dried oregano
Directions
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Preheat oven to 375°F (190°C). Blanch broccoli, cauliflower, carrots, and bell peppers in boiling water for 3-4 minutes. Drain and set aside.
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Melt butter in a saucepan, add flour and whisk for 2 minutes. Gradually add milk, season with garlic powder, onion powder, thyme, oregano, salt, and pepper. Cook until thickened.
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Grease a baking dish, layer vegetables, sauce, cheddar, mozzarella, and Parmesan cheeses. Repeat layers.
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Cover with foil, bake for 20 minutes, then uncover and bake for 10-15 minutes until cheese is bubbly and golden brown. Garnish with parsley.
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Let cool slightly before serving.