Hearty Vegetable Casserole
This Vegetable Casserole is warm, creamy, and packed with colorful veggies baked under a golden, cheesy topping. It’s the perfect comfort-food side dish, but hearty enough to serve as a vegetarian main course. Simple ingredients, easy prep, and family-friendly flavors make this casserole ideal for weeknights, holidays, or meal prep.
Why You’ll Love This Recipe
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Loaded with nutritious vegetables
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Creamy without being too heavy
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Easy to customize
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Great for using up leftover veggies
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Perfect as a side or main dish
Ingredients (Serves 6)
Vegetables
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2 cups broccoli florets
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1 cup sliced carrots
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1 cup cauliflower florets
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1 cup zucchini, sliced
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1 cup mushrooms, sliced
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½ cup diced onion
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1 clove garlic, minced
Creamy Sauce
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2 tablespoons butter
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2 tablespoons all-purpose flour
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1½ cups milk
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½ cup sour cream or Greek yogurt
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1 cup shredded cheddar cheese
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½ teaspoon salt
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½ teaspoon black pepper
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½ teaspoon paprika
Topping
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½ cup breadcrumbs or crushed crackers
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½ cup shredded cheese
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1 tablespoon melted butter
Instructions
1️⃣ Preheat the Oven
Preheat to 180°C (350°F). Lightly grease a 9×13-inch baking dish.
2️⃣ Prepare the Vegetables
Lightly steam or blanch the broccoli, carrots, and cauliflower for 3–4 minutes until slightly tender but still firm.
Drain well.
In a skillet, sauté onion, garlic, mushrooms, and zucchini in a little olive oil for 3–4 minutes until softened.
Combine all vegetables in a large bowl.
3️⃣ Make the Cream Sauce
In a saucepan over medium heat:
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Melt butter.
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Whisk in flour and cook for 1 minute.
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Slowly whisk in milk, stirring until thickened (about 3–5 minutes).
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Remove from heat and stir in sour cream, cheese, salt, pepper, and paprika.
Pour the sauce over the vegetables and mix gently.
4️⃣ Assemble
Transfer mixture to prepared baking dish.
Mix breadcrumbs with melted butter and remaining cheese. Sprinkle evenly over the top.
5️⃣ Bake
Bake uncovered for 25–30 minutes until bubbly and golden on top.
Let rest 5–10 minutes before serving.
Delicious Variations
🥔 Add Potatoes
Mix in diced, pre-cooked potatoes for a heartier casserole.
🌱 Vegan Version
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Use plant-based butter and milk
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Replace cheese with dairy-free alternative
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Swap sour cream for cashew cream
🍗 Protein Boost
Add cooked shredded chicken or chickpeas.
🧀 Extra Cheesy
Use a mix of mozzarella, cheddar, and parmesan.
Storage & Reheating
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Refrigerate up to 4 days in an airtight container.
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Reheat in oven at 175°C (350°F) for 10–15 minutes or microwave individual portions.
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Freeze up to 2 months (best without breadcrumb topping until reheating).
Serving Ideas
Serve alongside:
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Roasted chicken
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Grilled steak
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Holiday turkey
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Or enjoy on its own with a fresh green salad
Final Thoughts
This vegetable casserole is creamy, comforting, and a great way to enjoy more veggies without sacrificing flavor. The tender vegetables combined with rich cheese sauce and crispy topping create the perfect balance of textures.