What are good recipes for cheese dip?

Velveta and Rotel tomatoes. Cut an 8 ounce block of Velveeta into cubes and put it in a bowl that is microwave safe. Pour over that a can of Rotel tomatoes. Microwave on high for 1 minute then remove and stir. Continue in 1 minute intervals stirring each time until the cheese is all melted and the dip is smooth.