Enchilada Casserol

I got this recipe from a craft magazine. I made this a few nights ago and Aaron asked me to make it again and it hasn't even been a week. He really liked it. I made it under 30 mins too. I added black beans in my layers too because Hali loves them.

1 lb. ground beef

1/4 cup chopped onion (I used dried)

1 can 8oz tomato sauce ( I made some)

1/2 cup water

2 tsp chili powder

4 corn tortillas

1 cup shredded cheese

1/4 cup sour cream

1 can black beans (optional)

Cook in a frying pan the beef and onions. When done drain and add seasonings, sauce and water. Let it simmer for a few minutes until its not so liquidy. Then layer in a microwavable dish-tortilla, meat and cheese. Heat in the microwave for 3 mins or until cheese has melted. Then on top add sour cream and a few diced tomatoes and olives if you want.