Cut the chicken tenderloin into bite-sized pieces.
Slice the onion and bell pepper into thin strips.
Heat olive oil in a pan and stir-fry the chicken tenderloin.
Once the chicken is cooked, add the sliced vegetables and stir-fry together.
Add soy sauce, oligosaccharide, and minced garlic. Stir-fry until the seasoning is well absorbed.
Finish with sesame oil and black pepper.