Instructions:
1. Preheat the Oven:
- Preheat your oven to 250°F (120°C).
2. Prepare the Roast Beef:
- Lay out four sheets of aluminum foil, each large enough to wrap a portion of roast beef.
- Divide the roast beef evenly among the foil sheets.
3. Warm the Roast Beef:
- Seal each portion of roast beef in its foil packet.
- Place the foil packets in the preheated oven for about 8 minutes, or until the roast beef is warmed through.
4. Melt the Cheese:
- While the roast beef is warming, heat the cheese in a saucepan over medium-low heat.
- Stir the cheese until it’s fully melted and smooth. Season with salt and pepper to taste.
5. Prepare the Curly Fries:
- While the roast beef is finishing in the oven, prepare the curly fries according to the package instructions or your preferred method. If making them from scratch, ensure they are crispy.
6. Assemble the Sandwiches:
- Once the roast beef is warmed, remove the foil packets from the oven.
- Open each packet and place the warm roast beef onto the bottom half of each toasted bun.