Hot Italian Sausage Panini with Pickled Peppers

Name: Hot Italian Sausage Panini with Pickled Peppers
Ingredients: 1 1/2 cups white vinegar; 1 1/2 cups water; 1/2 teaspoon red pepper flakes; 2 teaspoons salt; 1 tablespoon sugar; 2 garlic cloves, smashed; 1 red bell pepper, cored, seeded and sliced; 1 green bell pepper, cored, seeded and sliced; 1 medium onion, sliced; 1 pound or 6 links hot Italian sausage, butterflied; 6 ciabatta rolls or 1 loaf ciabatta bread, cut into 6 portions; 6 tablespoons olive oil; 1/4 pound or 6 thin slices provolone; 1/4 pound Parmesan, shaved