In a small bowl combine chicken strips and fajita seasoning.
Heat 1 Tbsp olive oil in pan.
Cook the chicken in pan until cooked through.
In a large frying pan, heat the remaining 2 Tbsp olive oil over medium heat. Add the onions, bell peppers and jalapenos and cook, stirring often, until the onions are translucent and very tender, about 15 minutes.
Add the minced garlic and oregano and cook until fragrant, about 2 minutes.
Combine the chicken and fajitas.
Can serve with tortillas, guacamole and sour cream.