Preheat oven to 400°F. Grease a 3-quart rectangular baking dish. Arrange biscuit pieces in the bottom of the dish. Bake for 8 minutes.
Meanwhile, In a large skillet cook ground beef, sausage, and onion until meat is browned and onion is tender. Drain off fat. Stir in pizza sauce. Spoon mixture over partially baked biscuits.
Bake, uncovered, for 20 minutes. Top with cheese. Bake 10 minutes more or until cheese is melted.
Let stand 10 minutes before serving.
