Creamy Broccoli Mushroom Casserole Recipe

This stunning side dish is as delicious as it is beautiful! Inspired by a Savour recipe, this Creamy Broccoli Mushroom Casserole features tender broccoli florets and earthy mushrooms in a luscious, creamy sauce. We've made it even easier with frozen broccoli and light mayonnaise for a lighter, healthier twist. Perfect for potlucks, weeknight dinners, or holiday gatherings.

Prep Time 15 mins
Cook Time 45 mins
Calories 531.3 kcal
Protein 37g
Rating 4.0 (3 Reviews)
Creamy Broccoli Mushroom Casserole 34

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Recipe Author

Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Creamy Broccoli Mushroom Casserole

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How to Make Creamy Broccoli Mushroom Casserole

  1. Preheat oven to 375°F (190°C).
  2. Melt 2 tablespoons of butter in a large skillet over medium heat. Add 1 pound of sliced mushrooms and cook until softened and browned, about 5-7 minutes.
  3. Stir in 1/2 cup of finely chopped onion and cook for another 2-3 minutes until softened.
  4. Add 2 cloves of minced garlic and cook for 30 seconds until fragrant.
  5. Stir in 1 cup of frozen broccoli florets, 1/2 teaspoon of salt, and 1/4 teaspoon of black pepper.
  6. Cook for 2-3 minutes until heated through.
  7. In a medium bowl, whisk together 1 cup of light mayonnaise, 1/4 cup of milk, 1/4 cup of grated Parmesan cheese, and 1/4 teaspoon of garlic powder.
  8. Pour the creamy sauce over the broccoli and mushroom mixture and stir to combine.
  9. Pour the mixture into a greased 8x8 inch baking dish.
  10. Bake for 20-25 minutes, or until bubbly and lightly browned on top.
  11. Let cool for 5 minutes before serving.

Nutrition Information (Approximate per serving)

Sodium

22 g

Sugar

21g

Fat

93g

Carbs

10g