Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.

Lay large flour tortillas flat and distribute sliced roast beef and shredded cheese evenly.

Tightly roll up each tortilla, folding in the sides as you go to secure the filling.

Brush the exterior of each roll with melted butter and sprinkle garlic powder, onion powder, and dried parsley on top.

Place the roll ups seam-side down on the baking sheet and bake for 12-15 minutes until golden brown.

In a saucepan, combine beef broth, Worcestershire sauce, soy sauce, garlic powder, and onion powder over medium heat. Simmer for 5-7 minutes.

Slice each roll into bite-sized pieces and serve warm with the au jus for dipping.