Prime Rib Sandwich Recipe: Crowd-Pleasing Meal!

Got leftover prime rib roast? Turn it into the ultimate Prime Rib Sandwich! Even if you don’t have leftover prime rib, this recipe works great with roast beef too. Imagine this, juicy, medium-rare prime rib slices piled high on a crusty baguette, topped with warm caramelized onions and mushrooms, and slathered with creamy horseradish sauce. Don’t forget to add some arugula for that fresh, peppery kick—it elevates the flavors in this sandwich!

For the best results, slice the leftover meat as thinly as possible, like you’d get at a deli where they use a meat slicer. How long your leftover prime rib lasts depends on how you store it.

Keep it in the fridge for up to 4 days in an airtight container or tightly wrapped in plastic wrap or foil. You can also freeze leftover prime rib for 3-4 months. To prevent freezer burn, wrap it tightly in plastic wrap first, then in aluminium foil or a freezer-safe bag.

Prime Rib Sandwich Recipe

Prime Rib Sandwich Recipe

Use up those prime rib leftovers by making a thick, satisfying sandwich! The best prime rib sandwich is loaded with smoked prime rib, sweet caramelized onions, peppery arugula, and provolone cheese, all on a crusty baguette. Slice the leftover meat as thinly as possible, just like the shaved prime rib you'd get at a deli.
Prep Time 15 minutes
Total Time 15 minutes
Course Dinner
Cuisine American
Servings 5
Calories 770 kcal

Ingredients
  

  • 1 crusty French baguette cut into 4 pieces
  • 1 to 1 ½ pounds Leftover prime rib thinly sliced
  • 2 cups Arugula
  • 4 slices Provolone cheese
  • 1 cup Caramelized onions
  • ½ cup Horseradish sauce

Instructions
 

  • Take the cold meat out of the fridge and slice it thinly with a sharp chef’s knife, removing any excess fat.
  • Split your baguette almost in half so it can hinge open. Spread horseradish cream or your condiment of choice on one or both sides of the bread.
  • Mound a handful of arugula on the bottom half of the sandwich. Add a generous layer of sliced prime rib on top of the arugula.
  • Top the prime rib with a slice of cheese and as many caramelized onions as you like. Place the sandwich under the broiler until the cheese has melted and the sandwich is toasty.
  • Slice in half and enjoy!

Notes

  • Substitutions: This sandwich is also great with any deli roast beef or leftover roasted lamb.
  • Horseradish sauce: To make a batch, mix ½ cup sour cream, ½ cup heavy cream, ¼ cup mayo, 4 tablespoons prepared horseradish, ¼ cup chopped chives, and salt & pepper to taste.
Keyword Easy rib sandwich, Gourmet beef sandwich, Hearty beef sandwich, Leftover prime rib recipe, Prime rib au jus, Prime rib sandwich recipe

Nutrition Facts:

Nutrition Value
Calories770 kcal
Carbohydrates38g
Protein33g
Fat51g
Cholesterol116mg 
Sodium731mg 
Potassium676mg 

What is the Best Type of Bread to Use For a Prime Rib Sandwich?

What is the Best Type of Bread to Use For a Prime Rib Sandwich?

The best bread for a prime rib sandwich is a crusty French baguette. Its texture complements the tender prime rib and holds up well against the juicy fillings. You can also use ciabatta or sourdough for a slightly different flavor profile.

Can I Substitute the Prime Rib With Other Meats?

Yes, you can substitute prime rib with other meats like deli roast beef or leftover roasted lamb. These meats also work well in this sandwich, offering different flavors and textures to suit your preference.

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