Impossible Taco Pie

Directions

1. 1
   Heat oven to 400°.
2. 2
   Grease pie plate 10 x 1 1/2-inches.
3. 3
   Cook and stir beef and onion until brown.
4. 4
   Drain.
5. 5
   Stir in taco seasoning mix.
6. 6
   Spread in pie plate.
7. 7
   Beat milk, Bisquick mix and eggs until smooth, 15 seconds in a blender or on high for 1 minute in a mixer.
8. 8
   Pour into pie plate.
9. 9
   Bake for 25 minutes.
10. 10
    Top with tomatoes and cheese.
11. 11
    Bake 8 minutes longer or until knife inserted in center comes out clean.
12. 12
    Cool 5 minutes.
13. 13
    Serve with sour cream, topped with grated cheese.
14. 14
    Put green lettuce around edge and tomatoes.