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3-Ingredient Broccoli Cheese Casserole

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This 3-Ingredient Broccoli Cheese Casserole is the ultimate quick and easy side dish! Made with tender broccoli, creamy condensed mushroom soup, and melted cheddar cheese, it’s a cheesy, comforting, and nutritious casserole perfect for weeknight dinners, holiday feasts, or potlucks. With just three ingredients and under 30 minutes from prep to table, it’s simplicity at its finest.

  • Author: Chef Sarah
  • Prep Time: 5 minutes
  • Cook Time: 24 minutes
  • Total Time: 30 minutes
  • Yield: 6 servings
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Ingredients

1 lb fresh broccoli florets

10.5 oz condensed cream of mushroom soup

1 cup grated cheddar cheese

Instructions

  1. Preheat oven to 400°F (200°C). Grease or spray an 8-inch square baking dish with nonstick cooking spray.
  2. Wash broccoli and place in a microwave-safe bowl. Add ¼ cup water and microwave 3–4 minutes until crisp-tender. Drain thoroughly.
  3. Transfer broccoli to the prepared baking dish. Pour cream of mushroom soup over the broccoli and toss gently to coat.
  4. Sprinkle cheddar cheese evenly on top.
  5. Bake 15–20 minutes, until cheese is melted and lightly golden brown. Serve warm.

Notes

  • Cheese Swap: Use Swiss, Gruyère, or mozzarella for a different flavor.
  • Add Crunch: Sprinkle breadcrumbs or crushed crackers on top before baking.
  • Veggie Boost: Mix in cauliflower, carrots, or bell peppers.
  • Make it Spicy: Add cayenne or red pepper flakes to the cheese topping.
  • Make it Lighter: Use low-fat cream of mushroom soup and reduced-fat cheese.