Enchilada Casserole

Directions

1. 1
   Microwave meat and onions in a 2 quart microwaveable dish on HIGH 4 to 6 minutes, or until meat is done, stirring every 2 minutes.
2. 2
   Drain.
3. 3
   Stir in tomato sauce, water, and chili powder.
4. 4
   Microwave 5 to 9 minutes or until slightly thickened, stirring every 4 minutes.
5. 5
   Transfer to bowl.
6. 6
   Place 1 tortilla in same microwaveable dish; top with layers of 1/4 each meat sauce and cheese.
7. 7
   Repeat layers 3 times.
8. 8
   Microwave 2 to 5 minutes, or until heated through.
9. 9
   Let stand 5 minutes.
10. 10
    Top with tomatoes and sour cream.