Savory Sourdough Croissant Strata

Name: Savory Sourdough Croissant Strata
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Yield: 6 servings
Ingredients: 6 large sourdough croissants, sliced; 4 large eggs; 2 cups whole milk; 1 cup shredded cheese (Gruyère or Cheddar); 1 cup fresh spinach, chopped; 1 cup mushrooms, sliced; 1/2 cup onion, diced; 1 teaspoon garlic powder; Salt and pepper to taste; Butter for greasing the baking dish

Highlighted under: Warm Bowl Creations

I’m excited to share my recipe for savory sourdough croissant strata, a delectable dish that has quickly become a favorite in my household. This dish combines buttery croissants with a rich custard and a medley of vegetables for a satisfying meal that's perfect for brunch or a cozy dinner. I love how the sourdough adds an incredible depth of flavor, transforming simple ingredients into something extravagant. Whether you're entertaining guests or treating yourself, this strata will impress everyone at the table with its unique taste and luxurious texture.

Created by

Tom

Last updated on 2026-01-25T20:57:27.822Z

When I first set out to create this savory sourdough croissant strata, I wanted to combine familiar flavors with a twist. I experimented with different vegetables and found a winning combination of spinach and mushrooms that adds both color and nutrition. The best part? I discovered that letting the dish rest before baking allows all the flavors to meld beautifully, producing a perfectly rich and custardy texture.

Over time, I've perfected the balance of cheese and herbs, ensuring that each bite is bursting with flavor. The combination of sourdough croissants and creamy custard never fails to surprise my guests. Trust me, this strata will not only look stunning but will also become a staple in your entertaining repertoire.

Why You'll Love This Recipe
Delicious blend of buttery croissants and savory veggies
Unique texture from the bread soaking in custard
Perfect for brunch gatherings or family dinners

Mastering the Custard

The custard is the heart of your strata, providing moisture and binding all the ingredients together. When whisking the eggs and milk, ensure they are fully blended until the mixture is glossy and uniform. This helps avoid any streaks of egg, ensuring a smooth texture in your final dish. To enhance flavor, consider adding a pinch of nutmeg or finely grated parmesan to the custard; both complement the richness of the cheese beautifully.

For the perfect custard consistency, let your strata sit for at least 20-30 minutes before baking. This allows the croissants to fully absorb the egg mixture, resulting in a creamy texture throughout. If you're preparing this ahead of time, consider refrigerating the assembled strata for several hours or overnight. Just allow it to come to room temperature before baking to ensure even cooking.

Choosing Ingredients Wisely

Using quality sourdough croissants is crucial for flavor and texture. Opt for day-old croissants, as they are slightly stale and absorb the custard better without becoming mushy. If you’re short on time or croissants, you can substitute with stale baguette slices or even brioche for a different flavor profile. Each option will provide a unique twist to your dish.

Fresh vegetables play a key role in adding flavor and nutrition. Feel free to customize the vegetables based on your preferences or what's in season. Zucchini, bell peppers, or even artichoke hearts can be great substitutes or additions. Remember to sauté heartier veggies like mushrooms and onions beforehand to release excess moisture, which can prevent the strata from becoming soggy.

Ingredients

For the Strata

6 large sourdough croissants, sliced
4 large eggs
2 cups whole milk
1 cup shredded cheese (Gruyère or Cheddar)
1 cup fresh spinach, chopped
1 cup mushrooms, sliced
1/2 cup onion, diced
1 teaspoon garlic powder
Salt and pepper to taste
Butter for greasing the baking dish

Instructions

Prepare the Ingredients

Preheat your oven to 350°F (175°C). Grease a 9x13 inch baking dish with butter. In a large bowl, whisk together the eggs, milk, garlic powder, salt, and pepper.

Assemble the Strata

Layer the sliced croissants in the baking dish. Sprinkle the chopped spinach, mushrooms, and onions evenly over the croissants. Pour the egg mixture over the layers, ensuring everything is well soaked. Top with shredded cheese.

Bake and Serve

Cover the dish with foil and bake for 20 minutes. Remove the foil and bake for an additional 10 minutes or until golden brown. Allow to cool slightly before slicing and serving.

Pro Tips

For added flavor, consider including cooked bacon or ham in the layers, and feel free to experiment with your favorite cheese varieties.

Serving Suggestions

This savory sourdough croissant strata not only shines on its own but pairs wonderfully with a side of mixed greens or a light salad drizzled with a tangy vinaigrette. The freshness of the greens complements the richness of the custard and cheese, creating a balanced meal that's perfect for brunch or a casual dinner.

For a complete breakfast experience, serve this dish with fresh fruit or a selection of jams and preserves on the side. If you're making it for a gathering, consider adding a mimosa or a fresh fruit smoothie to elevate the brunch experience.

Storage and Reheating Tips

If you have leftovers, this strata keeps well in the refrigerator for up to three days. Allow it to cool completely before covering it tightly with plastic wrap or transferring it to an airtight container. When you're ready to enjoy it again, simply reheat in the oven at 350°F (175°C) for about 15-20 minutes or until heated through. Microwaving is an option, but the oven helps retain the crispy texture of the top.

For longer storage, you can freeze the assembled strata before baking. Wrap it tightly in foil and freeze for up to two months. When you're ready to bake, thaw it in the refrigerator overnight and then bake as directed, increasing the time slightly if it's still cold.

Questions About Recipes

→ Can I prepare this strata ahead of time?

Yes, you can assemble it the night before and refrigerate it. Just remember to let it come to room temperature before baking.

→ What if I don't have sourdough croissants?

You can substitute with regular croissants or any other type of bread you have on hand, but the flavor will be different.

→ Can I freeze the leftover strata?

Yes, you can freeze the cooked strata. Just make sure it’s completely cooled, then wrap it tightly in foil or plastic wrap.

→ What other vegetables can I add?

You can add bell peppers, zucchini, or even tomatoes. Just make sure to sauté them first to remove excess moisture.