Cut the chicken breast into small pieces.
Slice the onion and bell pepper thinly.
Heat olive oil in a pan and cook the chicken breast.
Once the chicken is cooked, add the onion and bell pepper and stir-fry together.
Place the cooked ingredients on a tortilla.
Add cheddar cheese and salad greens.
Roll the tortilla like a burrito and lightly toast both sides in the pan.
Cut into bite-sized pieces.