1 lb. ground beef
1 1/2 c. onions, chopped
1/2 tsp. salt
1/4 tsp. pepper
1 1/2 c. milk
3/4 c. Bisquick baking mix
3 eggs
2 tomatoes, sliced
1 c. Cheddar or process American cheese, shredded

Heat oven to 400 degrees. Grease pie plate 10 x 1 1/2 inches. Brown beef and onions; drain. Stir in salt and pepper. Spread in plate. Beat milk, baking mix and eggs until smooth; 15 seconds in blender on high or 1 minute with hand beater. Pour into plate. Bake 25 minutes. Top with tomatoes; sprinkle with cheese. Bake until knife inserted in center comes out clean, 5 to 8 minutes. Cool 5 minutes. 6 to 8 servings.