Speedy Taco Bake
["1 lb. ground beef", "1/2 c. chopped onion", "1 (1 1/4 oz.) envelope taco seasoning mix", "1 (15 oz.) can tomato sauce", "1 (15 oz.) can whole kernel corn, drained", "2 c. shredded Cheddar cheese", "2 c. Bisquick original or reduced fat baking mix", "1 c. milk"]
["Heat oven to 350\u00b0.", "Cook ground beef and onion until beef is brown.", "Drain.", "Spoon into ungreased 13 x 9 x 2-inch baking dish. Stir in taco seasoning mix (dry), tomato sauce and corn. Sprinkle with cheese."]
["ground beef", "onion", "taco", "tomato sauce", "whole kernel corn", "Cheddar cheese", "Bisquick original", "milk"]