Chile con queso, sometimes simply called queso, is an appetizer or side dish of melted cheese and chili peppers, typically served in Tex-Mex restaurants as a dip for tortilla chips.

Tex-Mex cuisine is a regional American cuisine that originates from the culinary creations of Tejano people. It has spread from border states such as Texas and others in the Southwestern United States to the rest of the country. It is a subtype of Southwestern cuisine found in the American Southwest.