In a medium-sized bowl, combine the taco seasoning with the chicken. Set aside.
In a food processor or blender, combine spinach, cilantro, and salsa. Pulse until fully chopped and combined.
Layer 6 tortillas into the bottom of your casserole dish, overlapping slightly.
Cover with one cup cheese, the half of the beans, half of the corn, and half of the chicken. Take one cup of the spinach mixture and cover the chicken.
On the second layer, start with tortillas, then beans, then corn, then chicken, and finally the spinach mixture. Top with the remaining cheese.
Cover with foil and bake for 30 minutes until the cheese is bubbly.
Remove foil and cook for another 10-15 minutes until the top is browned to your liking.
Serve warm topped with jalapenos, greek yogurt (or low-fat sour cream) and more cilantro.
Enjoy!
Notes
FOR GARNISH: plain greek yogurt or low-fat sour cream, more cilantro, and Old El Paso jalapenos