1 lb Hamburger
1    Small onion, chopped
8 oz Velveeta
8 oz Monterey jack w/jalapenos
15 oz Can stewed tomatoes
10 1/2 oz Can mushroom soup

Brown hamburger and onion in skillet. Place in crockpot, on high heat, add
cubed cheeses and stir occasionally until melted. Add tomatoes and soup.
Heat through. Reduce heat to low to keep dip warm.