This is from one of our BMCC members. Sounds good. I'll have to try it....especially for a holiday dinner.
This can be made ahead and stuck in the fridge, we have it at Christmas.
Mashed Potatoe Casserole
5 lbs of potatoes peeled and cooked
1/2 pint sour cream
1 8oz cream cheese
1/4 tsp pepper
1/8 tsp garlic
3/4 tsp salt
1/4 tsp onion salt
2 T butter
Mash potatoes and add all ingredients except butter. Beat until light and fluffy. Put in a greased 2 quart casserole (or 9x13). Dot with butter. Bake at 350 for 30 minutes.