Sausage Squares

8 servings

1 cup Buttermilk Bisquick Mix
1/3 cup milk
4 tablespoons mayonnaise, divided
1 pound Italian sausage
1/2 cup chopped onion
1 egg
2 cups grated Cheddar cheese
2 (4 ounce) cans chopped green chiles

Stir Bisquick mix with milk and 2 tablespoons mayonnaise; Spread in greased 13 x 9-inch baking pan.

Saute sausage and onion; drain fat, spread over Bisquick mix.

Beat egg with remaining mayonnaise, cheese and chiles. Spread over meat. Bake at 375 degrees F for 25 minutes. Cut into 1-inch squares.