Spicy Garlic Bread Sloppy Joes

Name: Spicy Garlic Bread Sloppy Joes
Ingredients: 1 tablespoon olive oil; 1 1/2 pounds ground beef; Kosher salt and freshly ground black pepper; 1/2 medium onion, chopped; 1 jalapeño, seeded and diced small; 1 Fresno chile, seeded and diced small; 1 serrano chile, seeded and diced small; 3 cloves garlic, minced; 2 tablespoons tomato paste; 1 cup beef stock or water; 3/4 cup ketchup; 2 tablespoons balsamic glaze; 1 tablespoon brown sugar; 1 tablespoon chili powder; 1 teaspoon dry mustard; 4 slices frozen garlic bread; 8 slices provolone cheese; 2 tablespoons chopped parsley