something a bit different.....

Prepared mashed potatoes or 2 cups dry potato flakes
6 hard taco shells
2 tablespoons butter
1/2 cup sour cream
1/2 cup shredded Cheddar cheese
1/2 cup French-fried onions
taco sauce

If using potato flakes, prepare the dry potato flakes according to package directions. Warm the taco shells according to package directions. In a bowl, mix the prepared mashed potatoes, butter, sour cream, Cheddar cheese, and French-fried onions. Fill the taco shells with the mashed potato mixture, and serve with taco sauce.