Sausage Strata Recipe

This sausage strata recipe is the ultimate make-ahead breakfast casserole that’s like a savory bread pudding meets the best breakfast bake you’ve ever had! It’s so good that when my husband took his first bite while I was testing this recipe, he was silent for a moment, looked up at me, and said “so… you’re making this for every holiday forever now, right?!” His enthusiastic response inspired me to perfect every detail of the recipe and method so you can nail it on your first try, creating a dish that’s golden and crispy on top while staying fluffy and tender on the inside.

I love recipes that can be assembled ahead of time and baked fresh when you need them, especially for holiday mornings or when you’re hosting overnight guests. The type of special breakfast that will ‘wow’ your family and friends but won’t have you stuck in the kitchen all morning. Like our popular brioche French toast casserole, this strata checks all the boxes since you can put it together the night before and just pop it in the oven when you’re ready in the morning.

Another thing I love about this recipe (beyond being delicious), is that it’s a great way to use up bread that’s beginning to go stale or day-old bread from the bakery, and you can treat it as a bit of a fridge clean-out meal by using leftover ham from a holiday dinner or greens that need to be used up. Waste not, want not, you know what I mean?! The strata can take all those odds and ends and transform them into something really impressive.

What is a Strata?

A strata is essentially a savory bread pudding that’s ideal for breakfast or brunch. It’s made by layering or mixing cubed bread with eggs, milk, cheese, and various savory ingredients like meat and vegetables, then letting it soak so the bread absorbs all that eggy custard. When baked, it puffs up into a golden, fluffy casserole that’s crispy on the edges while staying soft and fluffy throughout. The name comes from the visible layers (or “strata”) you sometimes see, though many recipes, like this one, mix everything together for even distribution of flavors.

Ingredients for Egg Strata Recipe

• Pork sausage meat. Provides savory, seasoned flavor throughout the strata and adds satisfying protein to make this a complete meal.
• Olive oil or butter. Used for sautéing the vegetables and adding rich flavor.
• Yellow onion. Adds depth of flavor to the dish, complementing the mushrooms, sausage, and eggs nicely.
• Mushrooms. Contribute earthy, umami flavor and meaty texture.
• Salt and pepper. Simple seasonings that enhance all the other flavors.
• Garlic. Brings bold, savory flavor that complements the sausage and vegetables.
• Large eggs. The base of the custard that binds everything together and gives the strata its structure.
• Milk and heavy cream. This combination creates a rich, creamy custard that soaks into the bread and bakes into a fluffy, tender texture.
• Baby spinach. Adds color, nutrition, and a mild earthy flavor that helps to balance out the richness of the meat and cheese.
• Cheese like gouda or gruyere. Melts wonderfully and adds nutty, creamy flavor throughout the strata. Using quality cheese makes a real difference here! We love and use a combination with Wood River Creamery’s Gouda Gruyere (a top 5 cheese in my book!)
• Cubed bread. The foundation that soaks up all the custard and becomes soft inside with crispy edges. This is a great use for leftover bread or bread that’s beginning to go stale. Sourdough, soft white bread, or day-old baguettes all work great. I’m using a simple sourdough sandwich bread in the photos.

Complete ingredient measurements and step-by-step directions are available in the recipe card below.

Helpful Equipment

You’ll need a 9×13-inch baking dish or 3-quart casserole dish for baking the strata. A large skillet is essential for cooking the sausage and vegetables, and a large mixing bowl helps combine everything together (though if your bowl isn’t big enough, you can layer directly in the baking dish). A simple box grater is what I prefer for shredding block cheese.

How to Make Sausage Strata Recipes

Cook the sausage. In a large skillet over medium-high heat, sauté the pork sausage, breaking it into small pieces as it cooks.

Heat until cooked through and browned (about 6-8 minutes).

Drain the fat and transfer to a medium mixing bowl (we like to do this by transferring the pork to a paper towel lined strainer).

Cook the vegetables. Return the pan to the burner and add olive oil, onion, mushrooms, salt, and pepper. Cook until they start to soften (about 5 minutes).

Add garlic. Stir in the minced garlic and cook until fragrant, (about 30 seconds to 1 minute).

Add to the bowl with meat. Transfer the vegetables to the bowl with the sausage and allow everything to cool to room temperature.

Prep the baking dish. While the meat and veggies cool, grease a 9×13-inch pan (or 3-quart baking dish) with butter or cooking spray. Set aside

Make the egg mixture. In a large mixing bowl, whisk together the eggs, milk, and cream until well combined.

Combine everything. Add the spinach and about ⅔ of the cheese to the bowl (reserving some cheese for topping).

Stir to combine.

Then add the meat, cooked veggies, and bread cubes to the egg mixture.

Gently stir to coat the bread and combine.

Transfer and top. Pour the mixture into the prepared baking dish.

Spread into an even layer, pressing the top gently.

Top with the remaining shredded cheese.

Rest the strata. Cover with foil and let rest for at least 30 minutes (or up to overnight in the refrigerator) before baking. Don’t skip this step! It’s crucial to getting the best fluffy texture when baked.

Bake. If refrigerated overnight, let the strata stand at room temperature for 15-20 minutes before baking. Preheat oven to 350°F. Keep the strata covered with foil and bake for 35 minutes, then remove the foil and continue to bake another 10-15 minutes until puffed, golden brown at the edges, and set in the center.

Rest before serving. Let the strata cool for 10-15 minutes before slicing and serving warm.

Recipe for Egg Strata Variation Ideas

• Different meats. Try cubed ham (especially great if you have leftovers from a holiday meal!), Canadian bacon, or cooked bacon instead of sausage for varied flavors.
• Switch up the greens. Replace the spinach with chopped arugula for a peppery kick or baby kale with stems removed if you prefer.
• Try different cheeses. You can use all gouda, all gruyere, or a combination of the two. Provolone would be delicious too! Really any mild cheese that melts well is definitely worth a try.
• Add more vegetables. Sauté some diced bell peppers alongside the mushrooms, add in chopped sun-dried tomatoes, or try some roasted red peppers.
• Make it vegetarian. Skip the meat and load up on extra mushrooms and spinach (or some of the added veggie suggestions) for a delicious vegetarian strata.

How to Store and Reheat Sausage Strata Recipe

Store any leftover, fully cooled strata by wrapping it tightly with plastic wrap and refrigerating for up to 3 days. The strata reheats really well, which makes it great for meal prep or enjoying leftovers throughout the week.

To reheat individual servings, microwave for 1-2 minutes until warmed through. For reheating the whole pan, cover it with foil and warm in a 250°F oven for about 20-30 minutes until heated through. The oven method helps maintain the texture better than the microwave for larger portions.

Breakfast Casserole Recipe with Bread FAQs

Can I assemble this the night before? Absolutely! In fact, this is one of the best things about strata. Assemble it completely, cover with foil, and refrigerate overnight. Just remember to let it sit at room temperature for 15-20 minutes before baking so it’s not going into the oven ice cold.

What kind of bread works best? Day-old or slightly stale bread is ideal because it absorbs the custard without falling apart. Sourdough, French bread, baguettes, or sturdy white sandwich bread all work great. Avoid very soft, fresh bread as it can get too mushy.

Can I freeze this strata? You can freeze the assembled, unbaked strata for up to 2 months. Wrap it very tightly with plastic wrap and foil. Thaw overnight in the refrigerator before baking, and let it come to room temperature before putting it in the oven.

How do I know when it’s done? The strata is done when it’s puffed up, golden brown on top and edges, and a knife inserted in the center comes out clean. The center should be set, not jiggly, when you gently shake the pan.