• Preheat oven to 400F. Spray a 9×13 baking dish with nonstick spray.
• Heat olive oil over medium heat in a medium skillet.
• Add onion to skillet and cook for 2-3 minutes, or until the onion is translucent and fragrant.
• Stir in the chicken, taco seasoning, tomatoes , and green chiles. Stir to combine fully. Reduce to simmer and allow to cook for 5-8 minutes.
• Place the taco shells in the baking dish, standing up.
• Bake the taco shells for 5 minutes by themselves to allow them to crisp up. Remove from the oven.
• Spoon 1 tablespoon of beans into the bottom of each taco shell. Top with the chicken mixture, almost to the top of each shell.
• Sprinkle each shell generously with shredded cheese, the more the better!
• Bake for 7-10 minutes or until cheese is fully melted and the edges of the shells are browned.
• Remove from the oven and top with your favorite items.

Topping options: sliced Jalapenos, sour cream, salsa, chopped cilantro, shredded lettuce, or any of your favorite taco toppings!