Can I prep this Casserole ahead of time?

Most of it. I would cook the sausage and cube the croissants at night, then assemble it the next morning. The egg mixture will make the croissants to soggy if you leave it in the fridge overnight.

Allow the casserole to cool, then cover with plastic wrap and store in the fridge for up to 3 days. To reheat the whole casserole, add the dish to a 350 degree oven, covered in foil, and cook for 10-15 minutes until warm. For individual servings, cut off a slice and place on a cookie sheet, covered with foil, and heat up in a 350 degree oven for 5-10 minutes.

Sausage Croissant Breakfast Casserole

Name: Sausage Croissant Breakfast Casserole
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Cuisine: American
Ingredients: 1 teaspoon salted butter; 4 large croissants; 16 ounces original breakfast sausage (Jimmy Dean or Neeses); 1 garlic clove, peeled and minced; 1 shallot, peeled and minced; 5 large eggs; 1 cup whole milk; 1/4 cup heavy cream; 1/2 teaspoon salt; 1/8 teaspoon black pepper; 1 teaspoon dijon mustard; 4 ounces havarti cheese, shredded (about 1 cup); 4 ounces cheddar cheese, shredded (about 1 cup); 1/4 cup green onion, sliced on a bias

Description

This Sausage Croissant Breakfast Casserole is rich, creamy and cheesy and is the perfect breakfast or brunch to serve a crowd. It's the best for weekends, or whip it up for Holiday mornings, like Christmas and Easter. Ready in an hour with minimal prep!

Ingredients

Scale

1 teaspoon salted butter
4 large croissants
16 ounces original breakfast sausage (Jimmy Dean or Neeses)
1 garlic clove, peeled and minced
1 shallot, peeled and minced
5 large eggs
1 cup whole milk
1/4 cup heavy cream
1/2 teaspoon salt
1/8 teaspoon black pepper
1 teaspoon dijon mustard
4 ounces havarti cheese, shredded (about 1 cup)
4 ounces cheddar cheese, shredded (about 1 cup)
1/4 cup green onion, sliced on a bias

Cook Mode Prevent your screen from going dark

Instructions

Preheat the oven to 375 degrees. Slice the croissants in half, like you would for a sandwich, then cut into 1 to 2 inch cubes. Grease a 9 x 13 casserole dish with butter, then add the croissant cubes into the dish.
Add the sausage into a large skillet over medium heat, breaking up until almost no pink remains. Add in shallot and garlic and stir to incorporate. Cook for 2 minutes. Turn off the heat and set aside to cool for 5 minutes. Drain the grease if needed.
In a large bowl, add in egg, milk, half and half, salt, pepper, and dijon mustard and whisk until combined well. Add in 2/3 of the cheese mixture and stir.
Pour the cooled sausage, shallot and garlic over the croissants.
Pour the egg and milk mixture over the top of the sausage and croissants. Gently toss the croissants around to coat them in the egg mix.
Top the casserole with remaining cheese and cover the dish with foil. Bake for 35 minutes, then remove foil and bake for another 5 minutes.
Remove the casserole dish from the oven and allow it to cool for 5 minutes. Sprinkle with green onion before serving. Slice into squares, serve and enjoy!

Equipment

casserole dish

Buy Now →

skillet

Buy Now →

Notes

If you have a lot of extra grease in the sausage, add the sausage to a paper towel lined plate to remove it.
Shred the cheese from a block for the best melt. Bagged cheese has preservatives that don't melt well.
Gently stir the croissants into the egg mixture to coat them before baking.

Prep Time: 15 minutes
Cook Time: 40 minutes
Category: breakfast
Method: bake
Cuisine: American