Variations; Cheddar, chihuahua, goat cheese, queso fresco, cotija, jack cheese, swiss, provolone, gouda, mozzarella, pepperjack, roasted garlic or bell peppers, jalapeños, habanero, crushed pepper flakes, chives, cayenne, caramelized onions or shallots, avocado, poblano, ancho chile, chipotle, chili powder, cilantro, coriander, scallions, garlic chives, maple, molasses, ponzu, soy, ginger, lemon, apple cider vinegar, mustard, bbq sauce, bay leaf, corn, cumin, paprika, smoked paprika, fried egg,