Cut the chicken breast into bite-sized pieces.
Finely chop the onion and bell pepper.
Heat a pan, add olive oil, and sauté the chicken breast.
Add the onion and bell pepper and stir-fry together.
Add oatmeal and pour in 100ml of water; let it boil.
Add Sriracha sauce and mix well.
Season with salt and pepper.
Transfer to a bowl and sprinkle sesame seeds on top to taste.