Low-Calorie Broccoli Vegetable Casserole – Easy, Healthy & Cheesy Dinner Recipe

Broccoli Vegetable Casserole is a delicious, creamy, and comforting baked dish filled with fresh broccoli, colorful vegetables, and a light homemade cheese sauce. This easy recipe combines wholesome ingredients with satisfying flavors, making it an excellent choice for healthy family dinners.

If you enjoy cheesy vegetable dishes but want something lighter, this Broccoli Vegetable Casserole is a wonderful option. Tender broccoli florets, juicy cherry tomatoes, colorful bell peppers, and melted cheese create a flavorful combination without requiring heavy cream or excessive butter.

One of the best things about Broccoli Vegetable Casserole is its versatility. You can serve it as a vegetarian main course, a nutritious side dish, or a convenient meal-prep option.

This simple baked casserole delivers creamy texture, golden cheese, and delicious roasted vegetable flavors in every bite.

Prep Time: 15 minutes
Cook Time: 25–30 minutes
Total Time: 40–45 minutes
Servings: 6

Why You’ll Love This Broccoli Vegetable Casserole

Another reason Broccoli Vegetable Casserole is worth making is its beautiful presentation. Bright green broccoli, red cherry tomatoes, and golden melted cheese create an appetizing dish suitable for everyday meals or special gatherings.

Ingredients

For the Vegetables

For the Light Creamy Cheese Sauce

For the Topping

How to Make Broccoli Vegetable Casserole

Step 1: Preheat the Oven

Preheat your oven to 375°F (190°C).

Lightly grease a 9×13-inch baking dish with cooking spray or a small amount of olive oil.

Prepare a large pot of water for blanching the broccoli.

Step 2: Prepare the Vegetables

Wash all vegetables thoroughly.

Cut the broccoli into evenly sized florets. Slice the carrots thinly and dice the bell peppers and zucchini.

Halve the cherry tomatoes and pat them dry.

Keeping the vegetables similar in size helps them cook evenly.

Step 3: Blanch the Broccoli

Bring a large pot of water to a boil.

Add the broccoli florets and cook for approximately 2 minutes.

Drain immediately and rinse briefly under cold water to stop the cooking process.

Allow the broccoli to drain thoroughly.

This step helps Broccoli Vegetable Casserole maintain a tender texture without becoming watery.

Step 4: Arrange the Vegetables

Place the broccoli, bell peppers, carrots, zucchini, and cherry tomatoes in the prepared baking dish.

Drizzle with olive oil and sprinkle with salt and black pepper.

Gently toss everything together until evenly coated.

Spread the vegetables into a uniform layer.

Step 5: Prepare the Cheese Sauce

In a small saucepan, whisk the low-fat milk and cornstarch until smooth.

Place over medium-low heat and cook for 3–5 minutes, stirring continuously, until slightly thickened.

Reduce the heat and stir in garlic, Italian seasoning, onion powder, and paprika.

Remove from heat. Allow the mixture to cool slightly before whisking in the Greek yogurt, mozzarella, and Parmesan.

Stir until creamy and combined.

Step 6: Pour the Sauce

Slowly pour the creamy cheese sauce over the prepared vegetables.

Use a spoon to distribute the sauce evenly.

The sauce should lightly coat the vegetables rather than completely cover them.

This creates a delicious Broccoli Vegetable Casserole with plenty of vegetable texture.

Step 7: Add the Cheese Topping

Sprinkle the remaining mozzarella cheese evenly over the casserole.

Add dried oregano and a little freshly ground black pepper.

Step 8: Bake Until Golden

Place the baking dish on the middle oven rack.

Bake uncovered for approximately 25–30 minutes, until the vegetables are tender and the sauce bubbles around the edges.

The cheese should appear melted and lightly golden.

Step 9: Rest and Serve

Remove the Broccoli Vegetable Casserole from the oven.

Allow it to rest for approximately 5 minutes so the sauce thickens slightly.

Sprinkle fresh parsley over the top and serve warm.

Tips for the Best Broccoli Vegetable Casserole

1. Use Fresh Broccoli

Fresh broccoli provides excellent texture and holds its shape during baking. Choose firm florets with a bright green color.

2. Drain Vegetables Thoroughly

Excess moisture can make the casserole watery. Drain blanched broccoli completely and pat wet vegetables dry.

3. Choose Reduced-Fat Cheese

Reduced-fat mozzarella provides a creamy, cheesy finish while helping control the overall fat content.

4. Avoid Overcooking

Bake only until the vegetables become tender and the sauce bubbles. Excessive cooking can make broccoli mushy.

5. Use Greek Yogurt Carefully

Add Greek yogurt after removing the sauce from direct heat. This reduces the chance of separation.

6. Let the Casserole Rest

Allowing Broccoli Vegetable Casserole to stand briefly after baking helps the sauce settle and makes serving easier.

Delicious Recipe Variations

Low-Carb Vegetable Casserole

Replace carrots with cauliflower florets and add mushrooms for additional vegetables.

High-Protein Vegetable Casserole

Add 1–2 cups cooked, shredded chicken breast before baking. This creates a more substantial main dish.

Mediterranean Broccoli Vegetable Casserole

Add chopped spinach, roasted red peppers, and a little crumbled feta cheese for Mediterranean-inspired flavor.

Spicy Cheesy Vegetable Bake

Add crushed red pepper flakes, smoked paprika, or finely diced jalapeño peppers.

Extra-Creamy Broccoli Bake

Increase the Greek yogurt slightly or add another tablespoon of reduced-fat mozzarella.

Remember that ingredient substitutions may change the nutritional values.

What to Serve With Broccoli Vegetable Casserole

Grilled Chicken Breast

Pair the casserole with seasoned grilled chicken for a balanced, protein-rich dinner.

Baked Salmon

Lemon-seasoned salmon complements the creamy vegetables beautifully.

Brown Rice

Serve Broccoli Vegetable Casserole alongside brown rice for a more filling vegetarian meal.

For a delicious Mediterranean-inspired vegetarian dinner, pair this cheesy vegetable casserole with our Cauliflower Shawarma Bowl (Easy Sheet Pan Dinner), packed with roasted vegetables and bold, aromatic spices.

Fresh Green Salad

A simple salad with lettuce, cucumber, and lemon dressing adds refreshing contrast.

Roasted Sweet Potatoes

Sweet potatoes provide natural sweetness that pairs nicely with savory cheese and vegetables.

If you love creamy, cheesy comfort food, try our Garlic Parmesan Macaroni Bake, a rich and flavorful pasta dish that pairs wonderfully with this vegetable casserole.

How to Store and Reheat Leftovers

Refrigerator Storage

Allow Broccoli Vegetable Casserole to cool briefly before transferring it into airtight containers.

Refrigerate within two hours and consume within 3–4 days.

Freezer Storage

Freeze individual portions in freezer-safe containers for up to 2–3 months for best quality.

The cheese sauce may change texture slightly after thawing.

Reheating Instructions

Preheat the oven to 350°F (175°C).

Place the casserole in an oven-safe dish, cover loosely with foil, and heat until thoroughly warmed.

Alternatively, microwave individual portions, stirring or rotating as needed.

Nutrition Information

Approximate nutritional values per serving, based on six servings:

Actual values depend on the specific dairy products, vegetable quantities, and cheese brands used.

Frequently Asked Questions (FAQ)

Can I use frozen broccoli?

Yes. Thaw frozen broccoli and drain it thoroughly before assembling Broccoli Vegetable Casserole. Skip blanching because frozen broccoli is generally already blanched.

Can I prepare this casserole ahead of time?

Yes. Prepare the vegetables and sauce separately, refrigerate them, and assemble shortly before baking.

How do I prevent a watery casserole?

Drain broccoli thoroughly, avoid excessive sauce, and remove excess moisture from zucchini and tomatoes.

Can I make Broccoli Vegetable Casserole without cheese?

Yes. Replace the cheese with a suitable dairy-free alternative or prepare a seasoned vegetable sauce. The flavor and texture will differ.

Can I use regular milk instead of low-fat milk?

Absolutely. Whole milk works, although it increases the fat and calorie content.

Is this casserole gluten-free?

The recipe can be gluten-free when all packaged ingredients, including cornstarch and seasonings, are confirmed gluten-free.

Can I add chicken to this recipe?

Yes. Add fully cooked, shredded chicken before baking for additional protein.

How long should I bake Broccoli Vegetable Casserole?

Bake at 375°F (190°C) for approximately 25–30 minutes, or until the vegetables are tender and the sauce is bubbling.

Conclusion

Broccoli Vegetable Casserole is a delicious way to enjoy more vegetables while keeping dinner simple, colorful, and satisfying.

The combination of tender broccoli, juicy tomatoes, sweet bell peppers, and a light creamy cheese sauce creates a comforting dish without relying on heavy ingredients.

Whether you serve it as a vegetarian main course, a nutritious side dish, or a convenient make-ahead meal, this recipe is easy to customize.

Save this healthy vegetable casserole for your next family dinner and enjoy a flavorful homemade meal with minimal preparation and cleanup.