Pull meat off the rotisserie chicken into bite-sized shreds, discarding the skin. You can do this several days ahead of time, if you like, and store tightly covered in the fridge.
2-3 cups shredded rotisserie chicken
Preheat the oven to 350°F and pour about 1/4 cup of the enchilada sauce into the bottom of a medium baking dish. (9x13-inch, 8x11-inch, or even a large skillet tend to work well.) Spread the sauce in a thin layer across the bottom.
1 and 3/4 cups enchilada sauce
To make the filling, combine shredded chicken, another 3/4 cup of the enchilada sauce, green chiles, and 3/4 cup of shredded Mexican cheese in a large bowl. Stir well to combine.
1 (4 ounce) can green chiles, 1 and 1/4 cups shredded Mexican cheese
To assemble, take one tortilla at a time and fill with about 1/3 cup of the chicken mixture. Roll up tightly and place in the baking dish, seam side down. Repeat with the remaining tortillas, tucking them snugly into the pan.
6-8 large tortillas
Pour the remaining enchilada sauce evenly over the enchiladas. Sprinkle remaining shredded cheese on top, followed by the Cotija if using.
1/3 cup crumbled Cotija
Bake for 18-20 minutes, until the sauce is bubbly and the cheese melted. Let rest for about 5 minutes, then top as desired and serve.
sour cream, avocado, cilantro, guacamole, chopped tomatoes, etc.