Mmmpossible Cheeseburger Pie

Directions

1. 1
   Heat oven to 400°.
2. 2
   Grease a pie plate, 10 x 1 1/2-inch.
3. 3
   Cook and stir beef and onion in a 10-inch skillet until beef is brown; drain.
4. 4
   Stir in salt and pepper; spread in plate.
5. 5
   Combine Bisquick, milk and eggs with a wire whisk or handbeater until almost smooth, about 1 minute.
6. 6
   Pour into plate.
7. 7
   Bake 25 minutes. Top with tomatoes and cheese.
8. 8
   Bake until a knife inserted in center comes out clean, 5 to 8 minutes.
9. 9
   Garnish with lettuce. Serves 8.