Preheat your grill to 350°F, and grease a 9 x 13 inch baking dish with the 1 teaspoon of oil.
Add the tomatoes, broth, cilantro, peppers, sauce, cumin, and the ½ tortilla to a blender, puree the mixture, and then add it to a pan over medium-high heat.
Add the 1 tablespoon of oil, let it cook for about 6 minutes, and then add ¼ teaspoon of the salt and ⅛ teaspoon of the pepper.
Add the tenders to the grill, let them cook for about 15 minutes, and then shred them.
Add the sour cream, ½ cup of the Mexican style cheese, ½ cup of the cheddar, remaining salt, and remaining pepper.
Set your broiler to high.
Cook the remaining tortillas according to their package's instructions, divide the chicken mixture between them, and then roll them up.
Add them to the baking dish, add the remaining oil, and then let them broil for about 3 minutes.
Add the tomato mixture, remaining Mexican style cheese, and remaining cheddar, let them broil for about 1 minute, and then add the avocados and onions.
Notes
The chicken can also be boiled instead of grilled! Extra cheese is the way to dad's heart.