*I used Bisquick, and followed the recipe for 9 biscuits. You could also use a package of refrigerated biscuit dough.
1 pound ground breakfast sausage
1 cup shredded mozzarella cheese
1 cup shredded cheddar cheese
5 eggs, beaten
2 egg whites
3/4 cup milk
1/4 teaspoon salt
1/8 teaspoon pepper
1 package country gravy {or use your own recipe}: prepared according to package directions
Preheat oven to 425º
Cook sausage in skillet over medium heat until browned. Drain.
Press biscuit dough evenly into the bottom of greased 8x8 inch pan.
Sprinkle sausage evenly over the biscuit dough.
Top sausage layer with cheeses.
In a bowl, whisk together eggs, egg whites, milk, salt, and pepper until blended. Pour evenly over cheese.
Bake uncovered for 30 minutes or until set.
*You can also bake covered with foil. Just make sure to check that a knife comes out clean when it's done to make sure it is cooked completely.
Let stand for 5 minutes, then cut into squares and top with country gravy to serve.