Preheat the oven to 425°F
Line a baking sheet with parchment paper or foil
Place tortillas on the baking sheet
Sprinkle cheese over half of each tortilla
Add cooked fillings if desired
Fold each tortilla in half
Lightly brush or spray the tops with oil
Bake for 8 to 12 minutes
Flip halfway through if needed
Remove when the tortillas are golden and the cheese is melted
Let cool for 1 to 2 minutes
Slice into wedges and serve