Super easy and super yummy! The perfect meal to make when you don't want to heat up the house in the summer time.
1 lb. ground beef
1/4 cup chopped onions
8 oz. can tomato sauce
1/2 cup water
2 tsp chili powder (I also added 1/2 tsp garlic powder)
4 corn tortillas
1 cup shredded cheddar cheese
1/2 cup chopped tomatoes
1/4 cup sour cream
Microwave meat and onions in 2-qt microwaveable dish on high 4 to 6 minutes or until meat is done, stirring every 2 minutes; drain. Stir in tomato sauce, water and chili powder. Microwave 5 to 9 minutes or until slightly thickened, stirring every 4 minutes. Transfer to bowl.
Place 1 tortilla in same microwaveable dish; top with layers of 1/4 each meat sauce and cheese. Repeat layers 3 times. Microwave 2 to 5 minutes or until heated through. Let stand 5 minutes. Top with tomatoes and sour cream.