Pre-heat oven to 350
Create a little assembly line for building up the enchiladas like this:
Cover the bottom of a baking pan in enchilada sauce
Take a tortilla, put some enchilada sauce on the tortilla, then some chile verde, and a little cheese.
Roll the tortilla, put, seam-side down, on the baking pan.
Repeat until the pan is full
Cover enchiladas with remaining sauce and cheese
Bake at 350 for about 30 minutes, until top has gotten crispy.
Serve, optionally with avacado slices, salsa and sour cream.