1 lb. ground beef
1 1/2 c. chopped onion
1/2 tsp. salt
1/4 tsp. pepper
1 c. shredded Cheddar cheese
1 1/2 c. milk
3/4 c. Bisquick baking mix
3 eggs

Heat oven to 400 degrees. Lightly grease pie plate (10 inch). Cook and stir ground beef and onion until beef is brown; drain. Stir in salt and pepper. Spread in pie plate; sprinkle with cheese. Beat remaining ingredients until smooth. Pour into pie plate. Bake until golden brown and knife inserted in center comes out clean. Let stand 5 minutes before cutting.