Preheat oven to 350 and grease a 9x13 baking pan with nonstick cooking spray.
Place 12 biscuits into the pan in a single layer. Brown sausage.
12 refrigerated southern homestyle biscuits
Sprinkle cooked sausage on top of the biscuits.
1 lb pork sausage
Add 1 cup cheese on top of the sausage.
1-1/2 cups shredded cheese
Mix together eggs and 1/2 cup milk. Season with salt and pepper.
6 eggs, 3 cups milk, 1/2 teaspoon salt, 3/4 teaspoon ground black pepper
Pour on top of the sausage and cheese mixture and set aside.
In a large skillet, add flour, remaining 2-1/2 cups milk, salt and pepper and whisk well. Heat over medium high heat, whisking constantly until thick and bubbly.
1/4 cup all purpose flour, 3 cups milk
Remove from heat and pour on top of pan.
Top with remaining 1/2 cup cheese.
1-1/2 cups shredded cheese
Bake for 30 minutes. Remove from oven and serve immediately.