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Spinach Mushroom Breakfast Casserole Recipe

Savory Spinach Mushroom Breakfast Casserole Recipe to Love

This Spinach Mushroom Breakfast Casserole Recipe is a versatile, nutritious breakfast dish that's perfect for meal prep and crowd-pleasing gatherings.
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Prep Time 15 minutes
Cook Time 40 minutes
Cooling Time 10 minutes
Total Time 1 hour 5 minutes
Servings: 8 slices
Course: Breakfast
Cuisine: American
Calories: 250
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Casserole
  • 4 cups fresh spinach can substitute with kale
  • 1 cup mushrooms, chopped button or cremini preferred
  • 6 large eggs use egg substitutes if vegan
  • 1 cup milk whole or low-fat; non-dairy alternatives are suitable
  • 1 cup shredded cheese Cheddar or vegan cheese for a dairy-free option
For Seasoning
  • 1 teaspoon salt adjust based on dietary restrictions
  • 1 teaspoon black pepper fresh ground is preferred
  • ½ teaspoon garlic powder can skip if using fresh garlic
  • ½ teaspoon onion powder fresh onions can be sautéed instead
For Cooking
  • 1 tablespoon olive oil replace with avocado oil if preferred

Equipment

  • 9x13-inch baking dish
  • large skillet
  • mixing bowl

Method
 

Step-by-Step Instructions
  1. Preheat your oven to 350°F (175°C) and lightly grease a 9x13-inch baking dish with olive oil.
  2. In a large skillet, heat 1 tablespoon of olive oil over medium heat. Add approximately 1 cup of chopped mushrooms and cook for about 5 minutes. Then add 4 cups of fresh spinach, sautéing for 2-3 minutes until wilted. Remove from heat.
  3. In a large mixing bowl, whisk together 6 large eggs with 1 cup of milk, adding salt, black pepper, garlic powder, and onion powder. Blend until smooth.
  4. Layer the sautéed spinach and mushrooms evenly in the prepared baking dish. Pour the egg mixture over the vegetables and sprinkle 1 cup of shredded cheese on top.
  5. Bake in the preheated oven for 35-40 minutes until the top is set and lightly golden.
  6. Once baked, let the casserole cool for about 5-10 minutes before slicing and serving warm.

Nutrition

Serving: 1sliceCalories: 250kcalCarbohydrates: 18gProtein: 16gFat: 15gSaturated Fat: 6gPolyunsaturated Fat: 1gMonounsaturated Fat: 7gCholesterol: 150mgSodium: 400mgPotassium: 300mgFiber: 2gSugar: 1gVitamin A: 2000IUVitamin C: 15mgCalcium: 300mgIron: 3mg

Notes

For additional flavor, customize with your favorite vegetables or different types of cheese. Can be prepared in advance for added convenience.

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