Put frying pan on high heat. Put some oil, cook onion and garlic first for 1 minutes. Add ground pork, cook for 2 minutes. Make sure to break up the pork. Add bell peppers, cook another minute, add the rest of veggies, stir for 1 minute. Put 2 TBSP oyster sauce and 1 TBSP of soy sauce. Stir fry for another minute.