- Preheat your oven to 375 degrees F. 
- Bring a large pot of salted water to a boil, and add the egg noodles. Cook the noodles until they are almost done, but still have a little bite, about 5 minutes. Remove from heat, drain and set aside. 
- While the water is coming to a boil and you are cooking your noodles, prepare you chicken enchilada mixture. 
- To a large oven-safe skillet that has been sprayed with a nonstick spray, add the chicken. Cook until the chicken is just cooked through, about 5 minutes. Add the chili powder, cumin, salt, black pepper, cream cheese, and sour cream. Stir until the cream cheese has melted, about 4 minutes. Stir in the enchilada sauce and carefully fold in the corn kernels, black beans, and green chilies. Remove from heat. Add the noodles, 3/4 cup of the cheddar cheese, and 1 cup of the monterey jack cheese to the  pan. Very gently fold the ingredients together. Top with the remaining cheddar and monterey jack cheese. 
- Place the skillet in the oven and bake for 10 minutes or until the cheese has melted. Remove from heat and let stand for 5 minutes before garnishing with desired garnishes! Enjoy!