Add all of the cheese sauce ingredients to a grill-safe pan.
Grill over medium heat with the lid closed, stirring every 3–4 minutes, until smooth and melted (about 15 minutes).
Spread the Tostitos® Mexican Street Corn Flavored Tortilla Chips onto a large platter.
Pour over the warm cheese sauce, then top with the roasted corn, Parmesan, crema, Salsa Valentina, fresh lime juice, avocado, and jalapeños.
