Heat 1 Tbsp oil in large saute pan.
Saute onion and bell peppers for 5 min, remove while crisp.
Add 1 Tbsp oil to saute pan and add chicken.
Saute chicken until browned, about 5 minutes. Add in taco seasoning and 1/2 cup water.
Let chicken and sauce come to a boil, about 2 minutes.
Add veggies back into saute pan and coat with sauce. Remove from heat.
Warm tortillas over open flame.
Smear 1 Tbsp sour cream on tortilla, add one scoop fajita mix, top with cheese.
Roll up tortilla and cut diagonally.