How to make Vegetable Casserole
If you’re looking for a delicious, easy, and comforting meal, this vegetable casserole is an excellent option! Loaded with nutritious veggies, a creamy sauce, and a crispy topping, this dish allows you to savor a mix of flavors while staying healthy and satisfied. Whether you serve it as a main course or a side dish, this vegetable casserole is sure to become a family favorite. Plus, it’s ideal for meal prep, making those busy weeknights much easier!

Sometimes, a healthy make-ahead breakfast is essential. Whether you’re hosting a gathering or looking to simplify hectic weekday mornings, this breakfast casserole is the perfect solution.
Usually, breakfast casseroles feature sausage and potatoes. In this version, I packed it with fresh vegetables and greens, such as red bell pepper, green onion, and spinach.
How to Make Breakfast Casserole here are the Ingredients
1. Fresh Vegetables
- roccoli Florets: 2 cups
- Cauliflower Florets: 2 cups
- Carrots: 2, sliced
- Zucchini: 1, chopped
- Bell Peppers (Red & Yellow): 1 cup, chopped
- Spinach or Kale: 1 cup, chopped

2. Sauce & Seasonings
- Butter or Olive Oil: 2 tablespoons
- Garlic: 3 cloves, minced
- All-Purpose Flour: 2 tablespoons (for thickening)
- Milk (Dairy or Plant-Based): 1 ½ cups
- Vegetable Broth: ½ cup
- Cheddar Cheese (or Vegan Cheese): 1 cup, shredded
- Salt & Black Pepper: To taste
- Italian Seasoning: 1 teaspoon
- Paprika: ½ teaspoon (optional, for a smoky flavor)

3. Topping (For That Crispy Finish!)
- Breadcrumbs (Panko or Whole Wheat): ½ cup
- Parmesan Cheese (or Nutritional Yeast for Vegan Option): ¼ cup
- Olive Oil: 1 tablespoon
Preparation Steps to Making Vegetable Casserole
Step 1: Preheat the Oven & Prep the Vegetables
Preheat your oven to 375°F (190°C). Chop all vegetables into bite-sized pieces and blanch the broccoli, cauliflower, and carrots in boiling water for 3-4 minutes to soften slightly. Drain and set aside.
Step 2: Make the Creamy Sauce
In a saucepan over medium heat, melt butter or olive oil, then sauté garlic until fragrant. Stir in flour and cook for 1 minute. Gradually add milk and vegetable broth, whisking continuously until the sauce thickens. Stir in cheese, salt, black pepper, Italian seasoning, and paprika. Cook for another 2-3 minutes until smooth.
Step 3: Assemble the Casserole
In a greased 9×13-inch baking dish, layer the blanched vegetables, zucchini, bell peppers, and spinach. Pour the creamy sauce evenly over the vegetables, ensuring everything is well coated.
Step 4: Add the Crispy Topping
In a small bowl, mix breadcrumbs, Parmesan cheese, and olive oil. Sprinkle this mixture over the casserole for a crunchy, golden topping.
Step 5: Bake to Perfection
Place the dish in the preheated oven and bake for 25-30 minutes, or until the top is golden brown and crispy. Let it cool for 5 minutes before serving.

Tips for the Best Vegetable Casserole
✔ Use Fresh or Frozen Veggies – Fresh vegetables work best, but frozen ones can save time (just thaw and drain well).
✔ Adjust the Cheese – For a richer flavor, mix cheddar, mozzarella, or Gruyère.
✔ Make it Gluten-Free – Use gluten-free breadcrumbs and flour for a GF version.
✔ Add Protein – Throw in chickpeas, tofu, or cooked quinoa for extra protein.
Nutrition Facts
- Amount Per ServingCalories280
- % Daily Value *
- Total Fat
14g
18%
- Saturated Fat 6g 30%
- Sodium 450mg 20%
- Total Carbohydrate
30g
11%
- Dietary Fiber 6g 22%
- Total Sugars 3g
- Protein 10g 20%
- Vitamin A 60mcg 7%
- Calcium 20mg 2%
* The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
This vegetable casserole is the perfect comfort food with a healthy twist! It’s creamy, crunchy, and full of flavor, making it a great choice for both hectic weeknights and special gatherings. Plus, its versatility allows you to tailor it to meet your dietary preferences. Try this recipe and savor a nutritious, veggie-filled dish that the entire family will enjoy!
FAQs
1. Can I Make This Casserole Vegan?
Yes! Swap butter for olive oil, milk for almond or oat milk, and cheese for vegan cheese or nutritional yeast.
2. How Do I Store Leftovers?
Store in an airtight container in the fridge for up to 4 days. Reheat in the oven or microwave.
3. What Other Vegetables Work Well?
You can add mushrooms, green beans, eggplant, or even sweet potatoes!
4. Can I Freeze This Dish?
Yes! Let it cool completely, wrap it tightly, and freeze for up to 3 months.
5. What Can I Serve with This Casserole?
Serve it with a fresh salad, crusty bread, or a protein source like grilled chicken or tofu.
Also Check: Veggie Nachos
Checkout similar recipes: Vegetable Casserole Recipe | Vegetable Casserole