Pumpkin Au Gratin Bake

1 1/2 c milk
1 cup canned pumpkin (NOT pie mixture)
4-oz cream cheese, softened
1/4 c Parmesan cheese, grated
3/4 tsp salt
1/4 tsp pepper
4 large baking potatoes, sliced thinly (peels removed optional)
6 slices bacon, crisply cooked, and crumbled
1/2 cup green onion, thinly sliced

Preheat oven to 425 degrees. In blender container combine milk, pumpkin, cream cheese, Parmesan cheese, salt and pepper. Blend on med speed, until smooth. Blend on high speed for 2 mins, until light and fluffy. Add sliced potatoes, bacon and onions to a 12x7 (or 13x9) greased baking dish. Pour pumpkin mixture over potatoes and toss to coat. Cover with foil and bake for 55 mins. Remove foil and bake for 5 more mins. Let stand 10 minutes before serving.