Heat a 9-12″ skillet over medium-low heat for one to two minutes to ensure even browning.
Add about a teaspoon of butter to the heated pan and swirl around to coat. Add tortilla to pan and quickly layer on your ingredients; try to let the cheese overlap the tortilla a little so it get’s crunchy and caramelized and makes a “beard”. When cheese has melted and tortilla is golden brown, fold in half, and let it sit in the pan for another 30 seconds to bind the cheese together. Cut in half or quarters and serve with fresh salsa, guacamole, sour cream, and hot sauce.