Brown the ground beef in a large skillet over medium-high heat. Break it up with a spatula and cook until no longer pink, about 6–8 minutes. Drain any excess grease.

Add the onion and green pepper to the skillet. Sauté for 4–5 minutes until softened and aromatic.

Season with salt and steak seasoning, stirring well to incorporate all the flavors.

Mix cornstarch with beef broth in a small bowl until fully dissolved. Pour the mixture into the skillet, followed by the A-1 Steak Sauce. Stir everything to combine.

Simmer the mixture for 5–7 minutes until the sauce thickens and coats the meat evenly.

Toast the buns or rolls if desired, either in a skillet or under a broiler for 1–2 minutes.

Spoon the sloppy joe mixture generously onto the bottom halves of the buns.

Top with sliced provolone cheese while the filling is still hot so it melts into the meat. You can also place the sandwiches under the broiler for 1–2 minutes to melt the cheese further.

Finish with the top bun and serve immediately with your favorite sides.