Place the chicken breast cubes in a large bowl and toss with the taco seasoning.
Skillet
Heat a heavy skillet to medium-high heat.
Add oil to the pan, and then add the chicken.
Cook, stirring often, for 7 minutes.
Add the onion, bell pepper, and chipotle chili pepper.
Cook until the vegetables are tender and the chicken is cooked through, about another 5 to 7 minutes.
Transfer the meat and vegetables to a clean bowl.
Reduce the heat to medium-low.
Add additional oil to the skillet and add the tortillas. Sprinkle with some of the cheese, the meat and vegetable mixture, and then another sprinkle of cheese.
Fold the tortillas in half or top with another tortilla.
Cook, turning once until the tortillas are brown and crispy and the cheese is melted about 5 to 7 minutes.
Transfer to a cutting board and cut into wedges.
Serve with the desired toppings.
Blackstone Griddle
Heat your Blackstone Griddle to low heat.
Add oil, and then add the chicken.
Cook, stirring often for 7 minutes.
Add the onion, bell pepper, and chipotle chili pepper.
Cook until the vegetables are tender and the chicken is cooked through, about 5 minutes.
Remove the chicken and vegetables from your griddle and transfer to a clean bowl.
Add additional oil to the griddle and add tortillas.
Sprinkle with some of the cheese, the meat and vegetable mixtures and then more cheese.
Fold the tortilla in half or top with another tortilla.