28 ounce blocks extra sharp Cheddar cheese, shredded
18 ounce block Pepper Jack cheese (Monterey Jack cheese with peppers), shredded
14.5 ounce can chopped green chiles
14 ounce jar dice pimento (or pimiento), drained
Stir together the mayonnaise and next four ingredients. Gradually add the grated cheeses, one handful at a time, to the mixture, stirring after each handful until completely incorporated into the mixture.