For the Chicken:
- 2 pounds boneless, skinless, chicken breasts
- 2 tablespoons taco seasoning (you can use a store bought blend or mix 1 teaspoon each of chili powder, cumin, onion powder, garlic powder, salt, pepper, smoked paprika, oregano, and crushed red pepper)
- ½ yellow onion, diced
- 2 8-ounce cans green chiles
- 2-3 chipotles in adobo, chopped
- 2 tablespoons adobo liquid from the can or jar
- 3 garlic cloves, minced
- Juice of 1 lime
- ½ jalapeño, minced
- 1 cup chicken broth, plus more if needed
- ½ bottle of light beer (we used Coors)
For the Pickled Onions:
- 1 red onion
- ½ cup apple cider vinegar
- 1 tablespoon sugar
- 1 ½ teaspoon Kosher salt
For Toppings and Assembly:
- Pickled red onions
- Butter lettuce leaves
- Cotija cheese, grated
- Corn tortillas, taco size