Queso Dip

This is my sister-in-law Kendra's recipe that I stole from her blog. I even stole the picture from it. I'm making it for our superbowl party tomorrow, so I'll let you know how it is.
Best Queso Dip:
1 8oz pkg. cream cheese (I used fat free - can you make this healthy?!)
1 8 oz carton sour cream
1 8oz pkg Velveeta
1 C shredded Monteray Jack Cheese
1 small can Rotelle Diced tomatoes with Chiles - use Mild unless you like HOT HOT
Cut cream cheese and velveeta in chunks and place in oven proof bowl or crock pot. Mix in the rest of the ing. Turn crock pot on low for three hours/high for one hour or bake at 350 for 20 minutes. Serve warm with tortilla chips.