This is a real quick and easy dinner and is very yummy. I got this recipe off pinterest when i was browsing it awhile back.
Brown your ground beef and drain completely - then add refried beans, taco seasoning and about half a can of tomato sauce. Mix together and scoop into taco shells, (stand them up in a casserole dish).
Sprinkle the cheese on top and bake at 375 for 10 minutes. When they come out of the oven top with your favorite toppings like lettuce,tomato,sour cream and salsa.