PREPARATION
Preheat oven to 400°F and grease a 9×13-inch baking dish with nonstick spray.
Heat olive oil in a skillet over medium heat. Add onion and cook until translucent, 2-3 minutes.
Stir in chicken, taco seasoning, tomatoes, and green chiles. Bring to a simmer and allow to cook about 5 minutes.
Place taco shells in baking dish and transfer to oven. Bake 5 minutes.
Remove from oven and fill taco shells. Spoon 1-2 tablespoons of beans in each shell, topped with chicken, and then cheese.
Bake until cheese has melted, 8-10 minutes.
Remove from oven, top with your favorite toppings, and enjoy!
