1/2 lb. ground beef
1/2 c. sour cream
1/2 c. mayonnaise or salad dressing
1/2 c. shredded Cheddar cheese
1 tbsp. chopped onion
1 c. Bisquick mix
1/4 c. cold water
1 or 2 tomatoes, thinly sliced
1/2 c. chopped green pepper

Heat oven to 375 degrees. Grease square 8x8x2 inch baking dish.

Cook ground beef until brown; drain.

Mix sour cream, mayonnaise, cheese and onion. Reserve. Mix baking mix and water until soft dough forms. Pat in pan, pressing dough 1/2 inch up sides.

Layer beef, tomatoes and green peppers in pan. Spoon sour cream mixture over top. Bake until edges of dough are lightly browned, 25 to 30 minutes.