In a medium saucepan, combine beef broth, Worcestershire sauce, soy sauce, onion powder, garlic powder, and salt and pepper. Bring to a simmer for 10-15 minutes.

In a skillet over low heat, warm the roast beef for about 5 minutes until tender.

Lay out the tortillas, layer with warm roast beef and shredded cheese, then roll tightly and place seam-side down on a baking sheet.

In a small bowl, mix melted butter, garlic powder, onion powder, and dried parsley. Brush this on top of the assembled roll-ups.

Preheat oven to 375°F or heat a skillet over medium-high. Cook roll-ups in skillet for 2-3 minutes on each side, or bake for 10-15 minutes until cheese melts.

Let cool for a few minutes, slice into pinwheels, and serve with au jus for dipping.