Ironically, I had just been creating an idea to turn twice baked potatoes into a casserole, only to find it already in my repertoire. So, rather than recreate the wheel, I made this for family dinner. Everyone loved it! It originally comes from a magazine that was named Quick Cooking (a Taste of Home spin-off that's been renamed since).
bacon, fried and crumbled
green onions, chopped
1Cut baked potatoes into 1" cubes.
2Combine sour cream and cheeses.
3Layer 1/2 of the potatoes in an 8" x 8" baking dish. Sprinkle with 1/2 of the salt and pepper and bacon. Layer with 1/2 of the sour cream mixture. Repeat layers.
4Bake, uncovered, at 350*F for 20 minutes, or until cheese is melted. Sprinkle with onions.