8oz.Provolone Cheese Slices choppeduse 6oz if you don't want it very cheesy
1/2tspKosher salt
1/2tspfresh ground black pepper
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Instructions
In a large cast-iron skillet, cook the ground beef, breaking the meat up into chunks as it cooks until a deep brown crust appears.
Mix and continue to cook further until about 50 percent or so of the beef has a deep brown crust.
Set the beef aside. If desired, leave the grease in the skillet.
In the same skillet with the beef grease, add the butter, onions, bell peppers, and onions. Cook for about 1 to 2 minutes, undisturbed. Then, stir and continue to cook for 1 to 2 minutes more before stirring again.
Then, return the beef to the pan.
Whisk the beef broth and cornstarch in a small cup until well-mixed.
Into the pan, add the ketchup. Next, add the Worcestershire sauce and season with salt and black pepper. Then, pour in the beef broth/cornstarch mixture.
Continue to cook for additional 3 to 5 minutes until the mixture is just a bit liquidy.
How To Make it Gluten freeUse gluten-free Worcestershire sauce. If not available, consider using fish sauce or gluten-free soy sauce instead. Or make your own by combining soy sauce (tamari), ketchup, fish sauce, and tamarind paste.Check the label to make sure you are using gluten-free beef broth such as Swanson Canned Beef Broth.Use gluten-free hamburger buns instead of Brioche hamburger buns.