Cut the chicken breast into bite-sized pieces.
Slice the onion and bell pepper into pieces that are easy to eat.
Heat olive oil in a pan and cook the chicken breast over medium heat.
Once the chicken breast is partly cooked, add the onion and bell pepper and stir-fry.
Season with low-sodium soy sauce and black pepper to taste.
When all ingredients are cooked, turn off the heat and transfer to a plate.