Hot Dog Potato Casserole

6 all-beef hot dogs (Kosher are best)
4 cups cooked mashed potatoes (instant is fine)
1 small onion or 3 green onions, chopped
3/4 cup grated sharp Cheddar cheese

Preheat oven to 400 degrees F. Grease a 9-inch square baking dish.

Split hot dogs lengthwise.

Combine potatoes, onions and 1/2 cup cheese. Spread half of potato mixture in prepared baking dish. Place 3 split hot dogs over potatoes. Pile remaining potato mixture on top of hot dogs. Cover with the remaining hot dogs. Bake for 20 to 25 minutes.

Sprinkle with remaining cheese and bake until cheese melts, about 2 minutes.

Makes about 4 to 6 servings.