Philly Cheesesteak Sloppy Joes

These are messy, but oh so good!

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

Directions:
Add the ground beef to a large skillet and brown until a deep brown crust appears before breaking the beef apart. We want the meat to get a browned crust. Stir the ground beef and brown until a deep crust appears on about 50 or so percent of the beef. Remove the beef (you can leave the fat in the pan) and add 2 tablespoons of the butter, the onions, bell pepper, and mushrooms. Let brown for 1-2 minutes before stirring, then let brown for another 1-2 minutes before stirring again. Add the beef back to the pan once veggies are browned and softened. In a small cup mix the beef broth and cornstarch together. Add the ketchup, Worcestershire sauce, salt, pepper, and beef/cornstarch mixture into the pan. Cook until the mixture is only slightly liquidy (about 75% of the mixture is above liquid), for around 3-5 minutes. Turn off the heat and add in the provolone cheese. While the cheese is melting, butter your buns and put in a pan over medium to high heat to form a buttered crust on the inside of your buns. Spoon onto buns and enjoy!