- Preheat oven to 350 and pull hawaiian rolls apart and cut in half. Place bottom of rolls into a baking dish. Top with cheese slices, overlapping if necessary. Set aside.
In a skillet, add 4 tbsp butter, onion and 1 tsp garlic. Heat until onions are tender. Add Worcestershire sauce, onion powder, pepper, Au Jus seasoning and roast beef. Continue to heat until mixture is combined well.
- Mix remaining 1 tbsp of butter and 1 tbsp minced garlic. Melt together and stir well. Use a pastry brush to top buns with garlic butter mixture. Bake for 10 minutes.