In a separate skillet or pot, heat the oil.
Add the garlic and saute for 20-30 seconds until fragrant. Do not let it brown.
Add the sliced onion and saute for 1-2 minutes.
Then add the bell pepper and also saute for 2-3 minutes, until softened.
Now add the ketchup, chilli garlic ketchup, and sriracha sauce.
Mix well and cook on medium high heat for 3-4 minutes until the sauce is bubbling.
Now add the chicken stock and stir for 3-4 minutes, or until the sauce has slightly thickened.
Add the chicken, mix until fully coated with the sauce.
Garnish with sliced green onions and sesame seeds.
Serve immediately with white rice or veggie rice.