In a mixing bowl, combine 8 oz of softened cream cheese, 2 cups of shredded cooked roast beef, 1 cup of shredded mozzarella cheese, and 2 tablespoons of Worcestershire sauce. Add 1 teaspoon garlic powder, 1 teaspoon onion powder, and freshly ground black pepper to taste. Stir everything together until well blended.

Lay one flour tortilla flat on a clean surface, and spoon a generous amount of the beef filling mixture onto the tortilla, spreading it evenly while leaving a small border along the edges.

Starting at one end, tightly roll the tortilla until it encompasses the filling, keeping it snug.

Wrap the rolled tortilla in plastic wrap, securing it tightly. Place in the refrigerator and let it chill for at least 30 minutes.

Once chilled, remove from the fridge and carefully unwrap. Slice each roll into 1-inch thick pinwheels.

Arrange the sliced French Dip Pinwheels on a serving platter and prepare a small bowl of warm beef broth for dipping.