Meatballs: Heat oven to 350 degrees. Mix beef, sausage, eggs, crumbled bread, garlic powder, salt, onion, ketchup, and 4 tablespoons chopped parsley. Blend well in a large bowl. Form into small balls and place in a large baking pan with sides.
Sauce: Mix cranberry sauce, chili sauce, brown sugar, lemon juice, rosemary, and remaining 2 tablespoons chopped parsley. Heat in sauce pan over low heat until cranberry sauce melts. Pour over raw meatballs and bake 45 minutes at 350 degrees.