→ Main Ingredients
01 -
4 brioche hamburger buns, toasted
02 -
6 ounces provolone cheese, shredded
03 -
1/4 teaspoon ground black pepper
04 -
1/2 teaspoon kosher salt
05 -
1 cup low-sodium beef broth
06 -
1 tablespoon cornstarch
07 -
1 tablespoon ketchup
08 -
1 tablespoon Worcestershire sauce
09 -
2 cloves garlic, minced
10 -
8 ounces cremini mushrooms, chopped
11 -
1 small green bell pepper, diced
12 -
1 small yellow onion, diced
13 -
1 pound lean ground beef
14 -
1 tablespoon olive oil