Spinach Mushroom Breakfast Casserole: 8 Savory Servings

Jump to Recipe·Print Recipe

Spinach Mushroom Breakfast Casserole is a delightful dish that you can prepare for a hearty breakfast or brunch. This casserole is brimming with sautéed vegetables, creamy cottage cheese, and sharp cheddar cheese, all baked to golden perfection. It’s not just a comforting meal; it’s a wholesome option for anyone looking to start their day right. Whether you’re hosting a family gathering or just want a nutritious meal, this casserole checks all the boxes.

Why You’ll Love This Spinach Mushroom Breakfast Casserole

This savory dish is not only delicious but also packed with health benefits. Here are a few reasons to love it:

It’s a fantastic source of protein, thanks to the eggs and cheese.
Loaded with nutritious vegetables like spinach and mushrooms that boost your health.
Perfect for meal prep, allowing you to enjoy it throughout the week.
This dish is gluten-free, making it suitable for those with dietary restrictions.
It’s an easy spinach mushroom casserole recipe that anyone can follow.
Great for feeding a crowd, making it ideal for brunch gatherings.

This breakfast casserole with spinach and mushrooms is not only satisfying but also a quick solution for busy mornings.

Ingredients for Spinach Mushroom Breakfast Casserole

Gather these items:

1 medium onion, chopped (about 7 ounces)
8 ounces mushrooms, sliced
12 ounces baby spinach
2 cloves garlic, minced
3 green onions, sliced
5 Tablespoons unsalted butter (divided)
6 eggs, beaten
16 oz. cottage cheese
12 ounces sharp cheddar cheese, shredded
1 teaspoon kosher salt
1/2 teaspoon black pepper

These ingredients combine to create a delicious and satisfying dish for breakfast or brunch.

How to Make Spinach Mushroom Breakfast Casserole Step-by-Step

Step 1: Preheat your oven to 350°F (175°C). Grease a 13″ x 9″ baking dish with 1 tablespoon of the unsalted butter to prevent sticking.
Step 2: In a large skillet or sauté pan, melt 4 tablespoons of butter over medium heat. Add chopped yellow onions and sliced mushrooms and sauté for about 3-4 minutes, or until the onions turn translucent and mushrooms become tender.
Step 3: Stir in the minced garlic and continue sautéing for another minute to release its aroma and flavor.
Step 4: Gradually add the baby spinach, a handful at a time, stirring as you go. Cover the skillet and let the spinach wilt for about 5 minutes.
Step 5: Once cooked, remove the spinach and mushroom mixture from heat. Let it cool slightly, then drain any excess liquid to prevent sogginess. Chop the mixture more finely for even distribution in the casserole.
Step 6: In a separate large bowl, whisk together the beaten eggs, cottage cheese, shredded cheddar cheese, sliced green onions, kosher salt, and black pepper. Fold in the cooled spinach and mushroom mixture until well combined.
Step 7: Pour the mixture evenly into the prepared baking dish. Place it in the preheated oven and bake for 45-50 minutes, or until the top is golden brown and the center is fully set.
Step 8: Allow the casserole to cool for a few minutes before slicing. Serve warm for a delicious, protein-packed breakfast.

This step-by-step guide makes it simple to create a flavorful cheesy spinach mushroom egg dish that everyone will enjoy.

Spinach Mushroom Breakfast Casserole: 8 Savory Servings - Spinach Mushroom Breakfast Casserole - main visual representation

Pro Tips for the Perfect Spinach Mushroom Breakfast Casserole

Keep these in mind:

This casserole is gluten-free and perfect for breakfast or brunch.
Store leftovers in the refrigerator for up to 3 days.
You can customize vegetables based on your preference.
For a twist, consider adding herbs like thyme or basil.

These tips will help you achieve the best results when baking your healthy spinach mushroom breakfast bake.

Best Ways to Serve Spinach Mushroom Breakfast Casserole

Here are some serving ideas:

Pair it with a fresh garden salad for a balanced meal.
Serve with toasted whole-grain bread for added texture.
This casserole also works well as a filling for a spinach and mushroom brunch recipe.

These serving suggestions elevate your experience and make your breakfast even more enjoyable.

How to Store and Reheat Spinach Mushroom Breakfast Casserole

To store, simply place any leftovers in an airtight container in the refrigerator. You can reheat individual slices in the microwave for a quick meal. This method is great for meal prep spinach mushroom casserole, allowing you to enjoy it throughout the week.

Frequently Asked Questions About Spinach Mushroom Breakfast Casserole

What is a spinach mushroom breakfast casserole?

A spinach mushroom breakfast casserole is a savory dish made with eggs, spinach, mushrooms, and cheese, baked until golden. It’s a nutritious start to your day.

Can I make spinach mushroom breakfast casserole ahead of time?

Yes! You can prepare it the night before and bake it in the morning for a hassle-free breakfast. This is perfect for busy weekdays or brunch gatherings.

How do I avoid common mistakes with spinach mushroom breakfast casserole?

To avoid common mistakes, ensure to drain excess moisture from the vegetables and allow the casserole to cool slightly before slicing. This helps maintain the texture.

Variations of Spinach Mushroom Breakfast Casserole You Can Try

You can experiment with these variations:

Add diced bell peppers or zucchini for extra flavor and nutrients.
Make it a vegetarian breakfast casserole with spinach and mushrooms by excluding any meat products.
For a low-carb option, substitute the cottage cheese with ricotta.

These variations let you customize the dish to fit your taste preferences.

Spinach Mushroom Breakfast Casserole: 8 Savory Servings - Spinach Mushroom Breakfast Casserole - additional detail

For more delicious recipes, check out our Creamy White Wine Mushroom Chicken or Garlic Parmesan Chicken Bake. If you’re looking for a great dessert to follow your meal, try our Cranberry Custard Pie.