Corn Tortillas - From a place here in San Antonio that the mesšican who took my order didn't understand me when I came in and ordered "a dozen corn tortillas"
Chicken Filling - Cheated for this and bought a rotisserie chicken that I shredded. I then combined it with about a cup of jack cheese and some Herdez green tomatillo sauce (about 1/2 cup)
Here's a recipe I found thats pretty much what I did for the sauce.
Chile Verde ( Basic Green Chile Sauce) makes 2 cups +
2 Tbs vegetable oil or olive oil
1/4 to 1/2 small onion, diced
1 large garlic clove, minced
2 Tbs flour
1/4 tsp ground cumin
1/4 tsp black pepper
1 1/2 cups chicken or pork broth
1 cup roasted, peeled green chiles (10-12 fresh New Mexico, Anaheim or California or poblano chiles), or (if you don't have fresh chiles) 8 oz canned green chiles.
1/4 tsp oregano
1/2 tsp salt
(optional: 2 tsp or more chopped, canned or fresh jalapenos if you want
it hotter)
Heat the oil in a 1-2 qt saucepan over medium heat. Add onion and garlic, cover and cook over low heat for about 5 minutes to wilt the onions. Don't let them brown. Raise heat to medium, stir in flour, cumin and black pepper. Cook, stirring about 2 min. When the onion/flour mix just begins to color, remove from heat and add broth, stirring constantly to avoid lumps.
Add rest of ingredients. Return pan to heat, bring to a boil, cover and simmer over low heat another 30 min. The finished sauce should not be too thick; dilute with more broth or water if needed.
You can puree it if it's not smooth enough. Will keep in fridge for a week; heat before using.