Wake up to the tasty flavors of this everything-bagel casserole! It's made with bagels, sausage, eggs, cream cheese, and gruyère cheese. The result is a creamy and savory breakfast casserole that everyone will devour!
Preheat the oven to 375 degrees and spread the cut-up 5 large everything bagels, on a parchment-lined baking sheet.
Toast the bagels in the oven for about 8 minutes, stirring them around about halfway through. Once dry and toasty, remove them from the oven and let the bagel pieces cool completely.
While the bagels cool, heat 8 ounces cream cheese in a large bowl in the microwave for 20-30 seconds until it is very soft. Use a hand mixer to beat the cream cheese until it is smooth. Slowly mix in ⅔ cup whole milk and 3 tablespoons everything bagel seasoning,. Whisk the mixture until very smooth and creamy.
Whisk in 8 large eggs and stir in the shredded 2 cups gruyère cheese,.
Once the bagel pieces are fully cooled, add them to a bowl with the cooked 1 pound breakfast sausage, and the egg mixture. Toss together until fully combined. Cover and set aside to soak for 15-20 minutes.
Meanwhile, preheat the oven to 350 degrees Fahrenheit and spray a 4-quart baking dish with pan spray.
After the mixture has soaked transfer it to the prepared dish and sprinkle the top with additional everything bagel seasoning. Bake for 30-35 minutes or until a knife comes out clean from the center and it doesn’t jiggle when you shake it gently.
Let the casserole sit for 5 minutes before adding sliced green onions for garnish and serving.