Impossible Cheeseburger Pie

Directions

1. 1
   Brown ground beef with onion and salt and pepper.
2. 2
   Drain off grease.
3. 3
   Spread in greased 10-inch pie plate.
4. 4
   Beat together until smooth (1 minute with mixer or 15 seconds in blender): milk, Bisquick and eggs.
5. 5
   Pour over meat mixture.
6. 6
   Bake at 400° for 35 minutes.
7. 7
   Top with tomato slices and cheese.
8. 8
   Bake 8 minutes longer.
9. 9
   Cool 5 minutes before cutting.