Light spray a 9 x 13 pan with cooking spray. Cut the biscuits into 8 small triangles and evenly spaced in the pan. Top with cooked sausage and cheeses.
Whisk together eggs, milk, garlic powder, salt, and pepper. Pour over biscuits, sausage and cheese.
Bake 30 - 45 minutes until golden brown. Let cool for 5 -10 minutes before serving