Roast - beef or pork
1/2 c. chopped onion
1 (15 oz.) can tomato sauce
1 pkg. spaghetti sauce mix
1 can drained mushrooms (optional)
Little water

Put in crock pot and cook for approximately 8 hours.

Serve over noodles or on a bun. When served with mashed potatoes, thicken the sauce for gravy.