Place your large skillet on the stove and set the burner to medium-high heat. Pour in one tablespoon of olive oil and let it shimmer slightly before adding ingredients. This ensures the meat sears nicely immediately upon contact.
Add the ground turkey to the hot pan along with the salt, pepper, cumin, chili powder, oregano, and coriander. Break the meat apart with your spoon and cook for about 8 minutes until the pink is gone. I like to let it get a little browned for extra texture.
Remove the cooked turkey from the skillet and set it aside on a plate, then add the remaining tablespoon of oil. Toss in the chopped onions, jalapeño, and bell peppers, stirring them frequently in the hot fat. Cook these for about 5 minutes until they soften and start to caramelize.
Return the cooked turkey to the pan and pour in the black beans, diced green chiles, enchilada sauce, and corn. Stir everything gently to ensure the sauce coats every piece of meat and vegetable evenly. This creates the saucy base for your skillet casserole.
Cover the skillet with a lid or foil and bring the liquid to a gentle simmer to meld the flavors together. Once simmering, remove the lid and let it cook uncovered for another 10 minutes. This step thickens the sauce slightly so it isn't too runny.
Stir the sliced corn tortilla strips directly into the bubbling mixture so they can absorb some of the flavorful sauce. Sprinkle the shredded cheese generously over the top and turn the heat down to low. Let it sit until the cheese is fully melted and bubbly.