Leftover Pot Roast French Dip Sandwiches

Ingredients

• 1 tablespoon olive oil
• 1 medium onion, halved + thinly sliced
• 1 pound leftover pot roast, shredded
• 2 1/2 cups cooking liquid from the pot roast, or beef broth (divided)
• 2 teaspoons soy sauce
• 4 hoagie buns
• 8 slices provolone cheese
• Softened butter for spreading

Instructions

1. Preheat the oven to 350 degrees Fahrenheit.
2. In a large skillet, heat olive oil over medium high heat. Once the oil is hot, add the onion and saute 5-8 minutes or until the onion has wilted and has started to turn a light golden brown. 
3. Add the leftover pot roast to the skillet along with 1/2 cup of the cooking liquid (or beef broth). Reduce heat to low and simmer while you make the au jus. 
4. Heat the remaining cooking liquid (or beef broth) in a small pot over medium high heat until it begins to simmer. Add the soy sauce and simmer an additional 2-3 minutes before removing from heat. 
5. Remove the meat mixture from heat to begin sandwich assembly. 
6. To assemble, open the buns and spread both sides with a thin layer of butter. Cut the slices of provolone in half, layer two half slices on the bottom bun, followed by leftover roast/onion mixture, then two more half slices of cheese. Close the sandwiches and wrap with foil. 
7. Place the foil-wrapped sandwiches on the top oven rack and bake for 7-10 minutes or until the cheese is deliciously melty. Serve with small dishes of au jus for dipping and your favorite side. Enjoy!