I found this recipe on Pinterest and tried it with my family tonight. They loved it, but I must warn you. I don't use canned refried beans, I use http://www.food.com/recipe/simple-and-easy-homemade-refried-beans-460636. In addition, I didn't mix them in because only 1/2 of my family likes them. I layered them into 1/2 the tacos and because I put them on the bottom, those shells ended up a bit soggy. If you choose to separate them like me, I suggest you layer them on top of the meat!
Optional Condiments-
Lettuce (shredded)
Tomato (diced)
Salsa
Guacamole
Sour Cream
Olives, sliced
03In a large skillet brown ground beef and onion over medium-high heat. Drain off any excess liquid. Return to pan, add chilies, refried beans, tomato sauce, and taco seasoning. Mix well and cook for a few minutes if mixture seems runny.
04Spoon the taco meat mixture into the taco shells and place into a 9 x 13 inch baking dish, standing up. Sprinkle cheese over the top of the taco meat in each shell. Place into the oven and bake at 400 degrees for 10-12 minutes or until the cheese has melted and the tacos are heated through.
05Remove from the oven and top with any optional condiments for serving.