Leftover Prime Rib Sandwich Recipe
This Leftover Prime Rib Sandwich transforms tender leftover prime rib into a hearty, restaurant-quality meal with melted cheese, caramelized onions, and crisp bread. Serve it with warm au jus for dipping for an easy lunch or comforting dinner.
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Total Time: 25 minutes
- Yield: 5 sandwiches
- Category: Main Course
- Method: Stovetop
- Cuisine: American
- Diet: Low Calorie
Ingredients
- 1 1/4 pounds leftover prime rib, thinly sliced
- 5 crusty sandwich rolls, ciabatta rolls, or French rolls
- 5 slices provolone, Swiss, or cheddar cheese
- 2 tablespoons butter
- 1 medium onion, thinly sliced
- 8 ounces mushrooms, sliced (optional)
- 1 cup baby arugula or spinach
- 3 tablespoons horseradish sauce or Dijon mustard
- 2 cups beef au jus or beef broth, for warming and dipping
- Salt, to taste
- Black pepper, to taste
Instructions
- Melt the butter in a skillet over medium heat and cook the onions until soft and lightly caramelized. If using mushrooms, cook them with the onions until tender.
- Gently warm the sliced prime rib in hot beef au jus or beef broth for 1 to 2 minutes, taking care not to overcook it.
- Toast the sandwich rolls until lightly crisp.
- Spread horseradish sauce or Dijon mustard on the cut sides of the rolls.
- Layer the warm prime rib onto the rolls and top with a slice of cheese.
- Add the caramelized onions, mushrooms if using, and fresh arugula or spinach.
- Broil or bake the sandwiches for 1 to 2 minutes until the cheese is melted.
- Serve immediately with warm au jus on the side for dipping.
Notes
- Use pepper jack cheese for extra heat or garlic aioli instead of horseradish sauce for a milder flavor.
- Add sautéed bell peppers for a Philly-inspired variation.
- Use sourdough or pretzel rolls for a different texture and flavor.
- Store leftover sandwich components separately in the refrigerator for up to 3 days.
- Reheat the prime rib gently in warm broth or au jus to keep it tender and juicy.
Nutrition
- Serving Size: 1 sandwich
- Calories: 690 kcal
- Sugar: 4 g
- Sodium: 1080 mg
- Fat: 34 g
- Saturated Fat: 14 g
- Unsaturated Fat: 17 g
- Trans Fat: 0.5 g
- Carbohydrates: 42 g
- Fiber: 2 g
- Protein: 51 g
- Cholesterol: 135 mg