Warm a tablespoon of olive oil in a large skillet over medium heat.

Add in your ½ pound of shredded cooked chicken along with 1 ounce of taco seasoning. Stir well and heat until everything is warmed through, about 3-5 minutes.

Stir in ½ cup diced onion, 14.5 ounces of diced tomatoes, and 4.5 ounces of diced green chiles. Cook for an additional few minutes until everything is well combined and fragrant.

Warm the hard taco shells as per package instructions, usually in the oven for about 5-10 minutes until crispy.

Open each taco shell and spread about an ounce of refried beans inside.

Generously fill each taco shell with the chicken mixture.

Sprinkle 2 cups of shredded Mexican blend cheese on top of each filled taco and let it melt.

Customize with your favorite toppings, like sour cream, guacamole, or fresh cilantro, for added freshness and flavor.