Mashed Potato Casserole

12 large potatoes, cooked
8 oz. cream cheese
8 oz. sour cream
1 tsp. chives (opt.) or a few chopped green onions
1/4 tsp. garlic salt
1/4 tsp. onion salt
pepper to taste
1/4 cup melted butter
paprika

Combine the potatoes, cream cheese, sour cream, chives, salt and pepper. Whip until fluffy (add milk if necessary). Spread in 9x13 dish. You can made ahead and refrigerate overnight, or freeze in a few smaller dishes if 9x13 is too much for your family. When ready to use, drizzle melted butter over the top and sprinkle with paprika.

Bake at 350 degrees for 1 hour (or 30 minutes if baked immediately).