2 lbs ground beef |
1 large white onion, chopped |
2 (10 3/4 ounce) cans tomato soup, undiluted |
2 (10 ounce) cans mild red enchilada sauce |
16 (7 -8 inch) flour tortillas |
4 cups shredded cheddar cheese, divided |
sour cream (optional) |
sliced black olives (optional) |
chopped tomato (optional) |
chopped green onion (optional) |