Preheat the oven to 400°F.
Warm olive oil in a large oven-safe skillet over medium-high heat. When the oil starts to shimmer, add the onion and cook for 3-4 minutes, until it starts to soften.
1 Tablespoon extra-virgin olive oil, 1/2 yellow onion
Stir in the corn and cook until any moisture sizzles off.
1 cup frozen corn
Add the chicken, enchilada sauce, green chiles, taco seasoning, and 1/2 cup of the cheese. Stir well to combine.
3 cups cooked shredded chicken, 1 and 1/2 cups red enchilada sauce, 1 (4 ounce) can diced green chiles, 1 Tablespoon taco seasoning, 1 and 1/2 cups shredded Mexican cheese
Cut the tortillas into 4 wedges each, then tuck the wedges into the skillet, stirring and pressing down gently so they are all coated with sauce. Sample and season with salt to taste, then sprinkle the remaining 1 cup of cheese evenly on top.
4 medium-sized soft corn tortillas, kosher salt
Transfer skillet to the oven and bake for about 15 minutes, until the cheese is melted and the sauce is bubbling around the edges.
While the skillet bakes, prepare whatever toppings you like.
Remove from the oven, top, and serve straight from the skillet or scooped into bowls, as you like. Enjoy!
avocado, green onions, cilantro, tomatoes, lime wedges, sour cream, etc.