How to Make a Breakfast Strata

A savory strata is the perfect make ahead meal! Combine bread cubes with some add-ins and cheeses. Toss with a quick egg mixture and refrigerate overnight. 

While the mixture sits overnight, it soaks up the egg mixture and is ready to be baked in the morning. A great meal for a lazy morning or when you have guests!

close up of Mushroom Brie Breakfast Strata

What is a Strata?

A strata is a super-easy-to-make breakfast almost like a savory bread pudding (and truly, it’s great any time of day!).

Bread is cubed and tossed with flavorful ingredients (in this case brie and mushrooms). It’s tossed with egg/milk mixture and sits overnight. As it sits, the bread soaks in the mixture and in the morning it is baked until puffy and set.

Best of all, you can use this base to use up any ingredients you have on hand from leftover taco meat to roasted asparagus.

Frittata vs. Strata

A frittata and a strata are both essentially breakfast casseroles. A strata has a more soufflé-like appearance whilea frittata is more similar to a baked omelet.

A strata often includes bread cubes while fritattas can have potatoes or even pasta along with the add-ins.

ingredients on a table to make Mushroom Brie Breakfast Strata

How to Make a Strata

  1. Cook veggies or meats (such as mushrooms, sausage or bacon). Cool.
  2. In a separate bowl, whisk the egg mixture (per recipe below).

ingredients to make Mushroom Brie Breakfast Strata

  1. Toss the egg mixture with bread cubes and let it soak in a few minutes.
  2. Stir in add ins, herbs and cheeses.

ingredients in a glass bowl to make Mushroom Brie Breakfast Strata

  1. Spread into a baking dish and cover. Refrigerate overnight.
  2. Remove from the fridge while the oven preheats. Bake until set in the middle.

top view of ingredients mixed in a casserole dish to make Mushroom Brie Breakfast Strata

PRO TIP: Letting the strata set overnight ensures the egg mixture is completely soaked into the bread cubes so it puffs up almost like a soufflé.

close up of cooked Mushroom Brie Breakfast Strata

Best Breakfast Dishes

Did you love this Mushroom Brie Strata? Be sure to leave a rating and a comment below! 

close up of a slice of Mushroom Brie Breakfast Strata on a white plate with casserole dish in the back

Mushroom Brie Strata

Full of fresh veggies, cheese, and eggs, this Mushroom Brie Breakfast Strata is the perfect dish for breakfast or brunch!
Course Breakfast, Casserole
Cuisine American
Prep Time 20 minutes
Cook Time 1 hour
Chill Time 30 minutes
Total Time 1 hour 50 minutes
Servings 8 servings
Calories 343
Author Holly Nilsson


  • 8 ounces cremini mushrooms or 1 ½ cups vegetables of your choice, asparagus is another favorite
  • 1 clove garlic minced
  • 1 teaspoon olive oil
  • ½ teaspoon fresh thyme leaves or ⅛ teaspoon dried thyme leaves
  • 6 cups bread cubes slightly dried
  • 1 cup Havarti shredded, or mozzarella
  • 4 ounces brie cheese cubed

Egg Mixture

  • 4 eggs
  • 1 ¼ cups milk
  • ½ cup light cream or half and half
  • ½ teaspoon dry mustard powder
  • ½ teaspoon salt
  • ¼ teaspoon pepper
  • ¼ teaspoon onion powder


  • Cook mushrooms and garlic in olive oil over medium heat until tender. Set aside to cool.
  • Whisk the egg mixture in a large bowl. Season with salt & pepper. Add bread and toss to combine. Let sit 5 minutes and toss again until the liquid is absorbed. Stir in mushrooms, brie and ½ of the Havarti cheese.
  • Add the mixture to a greased 2 qt baking dish (or 9×9 pan). Cover and refrigerate at least 30 minutes or up to 24 hours.
  • Preheat oven to 350°F.
  • Bake covered for 30 minutes. Uncover, top with remaining cheese and bake an additional 15-20 minutes or until set in the middle.
  • Rest 10 minutes before cutting.


Any mix ins can be added. Vegetables should be cooked to tender crisp and meats should be cooked and drained.

This recipe can be doubled and cooked in a 9×13 pan to feed a crowd. In a 9×13, bake covered for 45 minutes. Uncover and bake an additional 15 minutes or until set. 


Serving: 1piece | Calories: 343 | Carbohydrates: 25g | Protein: 19g | Fat: 19g | Saturated Fat: 10g | Trans Fat: 1g | Cholesterol: 132mg | Sodium: 728mg | Potassium: 342mg | Fiber: 2g | Sugar: 5g | Vitamin A: 593IU | Vitamin C: 1mg | Calcium: 334mg | Iron: 2mg
slice of Mushroom Brie Breakfast Strata on a plate with writing
Mushroom Brie Breakfast Strata in a casserole dish with a title
close up of Mushroom Brie Breakfast Strata on a plate with a title
ingredients to make Mushroom Brie Breakfast Strata in a glass bowl with the final plated dish with a title

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