take the pork and put some soy sauce on it and some corn starch, stir to combine and let rest 5 minutes, thin slice some carrot, red or green bell pepper, some onion and some diced pineapple. In a bowl combine some ketchup, prepared mustard, brown sugar, vinegar and a dash of soy sauce. Brown meat in a bit of oil in a fry pan, cook until brown on all sides and add the vegetables, cook stirring often for a few minutes and add the sauce mixture, easy sweet and sour pork. Serve over buttered rice or with egg fried rice. OR you can cut the pork bits smaller and fry them up and put the meat in your fried rice as a meal on its own