One more recipe from my personal stash. It was pretty good, however, I might use cream of chicken soup next time just because I'm not a mushroom fan at all.
1 1/2 cups sour cream
1 can cream of mushroom soup
1 lb ground beef
1 medium onion, chopped
1 packet taco seasoning
16 oz can refried beans
1 package tortillas
4 cups shredded cheddar cheese
Preheat oven to 350 degrees. Mix together sour cream and soup. Spread 1/2 of the mixture into bottom of baking dish. Brown ground beef & onions, Drain. Mix in taco seasoning and refried beans. Divide mixture into tortillas. Roll up and place in dish. Repeat for remaining tortillas and meat mix.
Pour remaining sour cream soup mix on top. Sprinkle with cheese. Bake at 350 degrees for 30-35 minutes.