1 lb. ground beef
1 1/2 c. chopped onion
1/2 tsp. salt
1/4 tsp. pepper
3/4 c. Bisquick
1 1/2 c. milk
3 eggs, beaten
2 thinly sliced tomatoes
1 c. shredded processed cheese

Preheat oven to 400 degrees. Grease a 10 inch pie plate or spray it with Pam. Cook beef and onion, stirring until browned. Drain well. Stir in salt and pepper. Spoon into pie plate. Beat with wire whisk Bisquick milk, and eggs. Pour over beef mixture. Bake 25 minutes. Top with tomatoes, then cheese. Return to oven for 8 more minutes or until knife inserted in center of pie comes out clean. Cool 5 minutes. Cut in wedges and serve on bed of shredded lettuce. 6 to 8 servings.