1 lb. ground chuck
1/2 c. sour cream
1 pkg. taco seasoning
1/3 c. mayonnaise
1/2 c. shredded Cheddar cheese
1 tbsp. instant minced onion
1 c. Bisquick
1/4 c. water
1/2 c. chopped green pepper
1 or 2 tomatoes, sliced thin or 1 (20 oz.) can tomatoes, drained and chopped

Brown ground chuck with taco seasoning, drain well. Mix sour cream, mayonnaise, cheese and onion. Set aside. Mix Bisquick and water until soft dough is formed. Pat into 8 inch square pan, pressing 1/2 inch up sides.

Layer beef, tomatoes and green pepper on top of Bisquick mixture. Spoon sour cream mixture on top. Sprinkle with paprika. Bake at 375 degrees 25 to 30 minutes, or until edges are golden brown.