This recipe is from one of the cookbooks that was put out by my school when I was growing up. I use this one alot in our house and it's always well recieved!
Here's what you need:
1 lg frozen pot roast (beef or pork)
1 can cream of mushroom soup
1 can onion soup
1 can cream of celery soup
Put the frozen pot roast in a slow cooker/crockpot. Pour the cans of soup over the top; cover and cook on low for 4-6 hours. The soups make a wonderful gravy to put on mashed potatoes. YUM!