Cut the chicken breast into bite-sized pieces.
Prepare the vegetables such as onion, bell pepper, and broccoli.
Add olive oil to a pan and stir-fry the chicken breast.
When the chicken is halfway cooked, add the prepared vegetables.
Season with red pepper powder, soy sauce, minced garlic, and pepper.
Stir-fry all ingredients evenly over medium heat until cooked through.
Serve on a plate when done.