Preheat oven to 350°
Spread the diced ham in a large casserole dish
Sprinkle the onion, pepper, and pineapple overtop of ham
In a medium sauce pan, mix ½ Cup pineapple juice, and vinegar. Bring to a boil
In separate bowl, mix mustard, cornstarch, and maple syrup
Stir into the pineapple juice
Lower heat to medium and continue to cook and stir until thick
Remove
Mix in teriyaki and Worcestershire sauce
Pour mixture over the ham
Bake approximately 45 minutes
Serve with a side of cooked, fluffy white rice (Find recipe linked below!)