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Ultimate Creamy & Cheesy Vegetable Casserole

A close-up of a cheesy, golden-brown slice of vegetable casserole featuring corn, carrots, and broccoli.

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Make this easy vegetable casserole for a comforting, cheesy side dish or a simple weeknight dinner. It uses accessible ingredients to create a rich, satisfying bake.

Ingredients

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  • 2 tablespoons butter
  • 2 tablespoons all-purpose flour
  • 1 1/2 cups milk
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon garlic powder
  • 1 cup shredded cheddar cheese, divided
  • 1 cup frozen broccoli florets, thawed
  • 1 cup frozen carrots, thawed
  • 1 cup frozen peas and corn mix, thawed
  • 1/2 cup breadcrumbs

Instructions

  1. Preheat your oven to 375°F (190°C). Lightly grease an 8×8 inch baking dish.
  2. Melt the butter in a medium saucepan over medium heat. Whisk in the flour and cook for one minute, stirring constantly.
  3. Gradually whisk in the milk until the mixture is smooth. Continue to cook, stirring often, until the sauce thickens enough to coat the back of a spoon, about 5 to 7 minutes.
  4. Remove the saucepan from the heat. Stir in the salt, pepper, and garlic powder. Add 3/4 cup of the cheddar cheese and stir until the cheese melts completely into the sauce. This is your creamy cheese sauce.
  5. In a large bowl, gently combine the thawed vegetables with the cheese sauce.
  6. Pour the vegetable mixture into the prepared baking dish.
  7. Sprinkle the remaining 1/4 cup of cheddar cheese evenly over the top of the vegetables.
  8. Top with the breadcrumbs.
  9. Bake for 25 to 30 minutes, or until the casserole is bubbly and the topping is golden brown.
  10. Let the vegetable casserole rest for 5 minutes before serving.

Notes

  • For a richer flavor, use frozen cauliflower mixed with the broccoli and carrots.
  • If you want a crispier topping, toss the breadcrumbs with 1 tablespoon of melted butter before sprinkling them on top.
  • You can prepare this cheesy vegetable casserole up to the point of baking, cover it, and refrigerate it for up to 24 hours. Add 10 minutes to the baking time if cooking directly from the refrigerator.

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