http://www.seriouseats.com/2011/01/how-to-make-great-chile-verde-no-hatch-chile.html
Roast peppers and tomatillo together. (Broil in high or use roast option)
Broil or cook onions, garlic.
partially puree cilantro and add everything else.simmer.
Made with
http://www.food.com/recipe/cheesy-potato-and-green-chili-breakfast-casserole-195959
Another option to try:
http://www.food.com/recipe/creamy-cheesy-chili-potato-casserole-29749