Chili Sausage Squares
["1 c. biscuit mix", "1/3 c. milk", "1/4 c. mayonnaise, divided", "1 lb. bulk pork sausage", "1/2 c. chopped onion", "1 egg, beaten", "2 c. shredded cheese"]
["Combine biscuit mix, milk and 2 tablespoons mayonnaise.", "Stir well. Spread mixture in a greased 13 x 9 x 2-inch pan.", "Set aside. Cook sausage and onion until brown, stirring to crumble meat. Drain.", "Layer sausage mixture over biscuit mixture.", "Combine egg and cheese; spread over sausage. Bake at 350\u00b0 for 30 minutes.", "Let stand 5 minutes before cutting."]
["biscuit mix", "milk", "mayonnaise", "pork sausage", "onion", "egg", "shredded cheese"]