Sausage Squares

1 cup Buttermilk Bisquick Mix
1/3 cup Milk
4 tbls Mayonnaise
1 lb Italian Pork Sausage
1/2 cup chopped onion
1 egg
2 cups grated cheddar cheese
* 2-4 oz cans chopped green chilies

Stir Bisquick mix with milk and 2 tbls mayonnaise ; spread into greased
13 x 9 pan. Sauté sausage and onion ; drain fat, spread over Bisquick
mix. Beat egg with remaining mayonnaise, cheese, and chilies. Spread
over meat. Bake at 375 degrees for 25 min. Cut into one inch squares.