Chili Con Queso

1 (4 oz.) can diced green chilies

1 lb. American cheese, cubed

1 (16 oz.) can whole peeled tomatoes

1 tlb. minced dry onion

Fritos corn chips

Combine all ingredients in a double boiler, fondue pot, or crock pot.  Heat on low until melted.  Stir while heating until cheese is smooth.  Serve as a dip with Fritos.