1 1/2 lbs. ground chuck
1 c. chopped onions
1/4 tsp. garlic powder
2 tsp. chili powder
1 1/2 tsp. salt
1/2 tsp. pepper
1 c. water
1 doz. corn tortillas
1 lb. Jack cheese, shredded
1 c. sour cream

Mix together: 3-4 tbsp. taco sauce

Brown ground meat and onions and drain. Add next 6 ingredients. Simmer uncovered for 10 minutes or until most of liquid has evaporated, stirring occasionally.

Meanwhile, pour 1/2 cup enchilada/taco sauce into bottom of greased 9x13 inch dish. Arrange half of tortillas to cover bottom of dish. Pour 1/2 cup sauce over tortillas. Layer 1/2 of beef, 1/2 of cheese, and all of sour cream. Arrange other half of tortillas on top.

Layer with remaining beef, 1 cup sauce and Jack cheese. Cover with foil. Bake at 375 degrees for 40 minutes. Remove foil and bake for 5-10 minutes. Let stand for 5-10 minutes before serving.