1. Preheat oven to 450°F.
2. In a large bowl, mix beef, pepper, garlic powder & form into 8 small patties. Tear four large squares of foil & place 2 patties on each.
3. In a large bowl, mix all vegetables. Spoon vegetables evenly over patties.
4. Fold foil up to make leak-proof packets & place on a baking sheet. Bake 30 minutes, or until vegetables are tender & patties are done.