Hearty Philly Cheese Steak Sloppy Joes with Caramelized Vegetables - Recipe By Me

Ingredients

• 1 pound lean ground beef
• 1 small yellow onion, diced
• 1 small green bell pepper, diced
• 8 ounces brown mushrooms, minced
• 2 tablespoons ketchup
• 1 tablespoon Worcestershire sauce
• 1/2 teaspoon Kosher salt
• 1/2 teaspoon fresh ground black pepper
• 1 tablespoon cornstarch
• 1 cup beef broth
• 2 tablespoons butter
• 8 ounces Provolone cheese slices, chopped
• 6 brioche hamburger buns