Cut the chicken breast sausage into bite-sized pieces.
Slice the onion and bell peppers into thin strips.
Heat olive oil in a pan and stir-fry the chicken breast sausage.
When the chicken is cooked, add the onion and bell peppers and continue to stir-fry.
Add soy sauce, tomato sauce, and allulose syrup, then mix well.
When everything is well combined, sprinkle with sesame seeds to finish.