Spread the frozen corn on the prepared baking sheet.
Bake for 5–7 minutes, until the corn starts to brown.
Set the oven to 350 F.
In a mixing bowl, combine the mayonnaise, sour cream, garlic powder, lime juice, 1 cup cotija cheese, and diced jalapeño. Add hot sauce to your liking.
Stir the warmed corn into the mixture.
Transfer the mixture to an oven-safe dish.
Top with shredded cheese and remaining ½ cup cotija cheese.
Bake for 5–8 minutes, or until the cheese is melted and bubbly.