Cut the corn from the cob using a sharp knife. This will be messy, so be ready for corn to fly in every direction. Sauté the corn with some butter in a pan over medium high heat until it has roasted a bit. Add a pinch of cayenne pepper or chili powder, splash of fresh lime juice, and some chopped cilantro. Stir and then pour into a bowl and set aside.
Melt some more butter in the same pan. Fill half of a tortilla with the grated cheeses and the corn and then fold it over. Fry in the pan until golden brown on both sides. Garnish with cilantro, salsa, and sour cream and enjoy!