-
Heat a large skillet over medium-high heat and add 1 tablespoon of the oil.
-
Season the chicken with 1/2 teaspoon of the salt on all sides.
-
When the skillet is hot, add the chicken breasts and cook for 7 to 8 minutes per side, until mostly cooked through and the internal temperature reaches about 160°F.
-
Transfer the chicken to a plate and let it cool for 10 minutes. Shred the chicken, then return it to the same skillet.
-
Add the remaining 1 tablespoon oil, tomato sauce, water, chili powder, cumin, remaining 1 1/2 teaspoons salt, paprika, garlic powder, onion powder, and red pepper flakes. Stir well.
-
Cook over medium heat for 6 to 8 minutes, stirring occasionally, until the chicken is well coated and most of the liquid has evaporated. Remove from the heat.
-
In a separate bowl, mash together the avocados, lime juice, and salt until mostly smooth.
-
Heat a medium skillet over medium heat and warm the tortillas for 30 to 60 seconds per side, until pliable and lightly golden.
-
To assemble, spread some avocado mash onto each tortilla. Top with the shredded chicken mixture, pico de gallo, sour cream, and chopped cilantro.
-
Serve warm.