Spinach-Mushroom Brunch Casserole Recipe

Name: Spinach-Mushroom Brunch Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 6 Ball Park(R) Hamburger Buns; 2 tablespoons butter, or more if needed; 1 cup chopped yellow onion; 2 cups sliced mushrooms; 3 teaspoons dried Italian herbs; 2 teaspoons garlic granules; 2 teaspoons sweet paprika; salt and pepper to taste; 3 cups coarsely chopped fresh spinach; 6 slices bacon - cooked, drained, and chopped; 1 1/2 cups shredded Cheddar-Monterey Jack cheese blend; 6 eggs, beaten; 2 cups milk

Servings: persons

6 Ball Park(R) Hamburger Buns
2 tablespoons butter, or more if needed
1 cup chopped yellow onion
2 cups sliced mushrooms
3 teaspoons dried Italian herbs
2 teaspoons garlic granules
2 teaspoons sweet paprika
salt and pepper to taste
3 cups coarsely chopped fresh spinach
6 slices bacon - cooked, drained, and chopped
1 1/2 cups shredded Cheddar-Monterey Jack cheese blend
6 eggs, beaten
2 cups milk

1
Place the bun tops, top down, in a buttered, 13- x 9-inch casserole dish. Set aside the bun bottoms.
2
In a large skillet, melt butter over medium-high heat, until sizzling.
3
Add onion and saute until they're just softening. Add mushroom slices and stir, reducing heat to medium. Cook for about 5 minutes.
4
Stir in herbs, garlic, paprika and salt and pepper to taste, then add spinach and cook another 3 minutes, stirring to wilt the spinach. Remove from heat.
5
Spoon half the vegetable mixture evenly over the bun tops in the casserole dish. Scatter half the bacon and cheese evenly on top.
6
Place the bun bottoms, with cut side up, in the casserole to form the top layer.
7
Spoon the rest of the vegetable mixture, bacon and cheese over the top layer of buns.
8
In a bowl, stir together eggs and milk until blended.
9
Pour the mixture evenly over the casserole. Using a spatula, press down firmly on each of the buns to submerge in the liquid. Cover tightly with plastic wrap and refrigerate 8 hours or overnight.
10
In the morning, let casserole sit at room temperature for about 30 minutes.
11
Preheat oven to 350 degrees. Bake for 35 to 40 minutes or until firm at the center and a toothpick inserted comes away clean. Serve warm.

1064

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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How did you like this recipe?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 13 ingredients. The key ingredients include: 6 Ball Park(R) Hamburger Buns, 2 tablespoons butter, or more if needed, 1 cup chopped yellow onion, 2 cups sliced mushrooms, and more.

Yes, Spinach-Mushroom Brunch Casserole falls under the Breakfast category and is a great choice for this type of meal.

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

That's it — enjoy your meal!

Spinach-Mushroom Brunch Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions