Heres what you need:
First take the tortilla and warm up for about 20 sec in the micro then put a little oil in your frying pan. Let the tortilla sit in the frying pan until its warm and toasty, but not TOO toasty. You want to be able to cut it with a fork later and not hear "crunchies". In a separate pot you need to warm your sauce.
Then smother with enchilada sauce.
Next comes cheese and chopped onions! If you dont work quick enough it gets cold. Give them a nuke in the micro to melt the cheese and your good to go. You can also add salsa and sour cream if you like! Its best to make 3 or 4 on top of each other and that way it looks like a "stack" of pancakes.