Sausage and Pepper Burger

Name: Sausage and Pepper Burger
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Yield: 0
Cuisine: american
Ingredients: 1/2 cup green bell pepper, sliced; 1/2 cup red bell pepper, sliced; 1/2 medium onion, sliced; Salt and pepper; 2 teaspoons red wine vinegar; 4 Italian sausages; 4 slices provolone cheese; 2 pretzel buns