Philly Cheesesteak Tortellini Pasta

Ingredients:

1 package (12 oz) cheese tortellini
1 tablespoon olive oil
1 large onion, sliced
1 green bell pepper, sliced
2 cups sliced mushrooms
1 pound thinly sliced beef steak
1/2 teaspoon salt
1/4 teaspoon pepper
1 cup beef broth
2 tablespoons Worcestershire sauce
1 cup shredded provolone cheese