Leftover Prime Rib Sandwich Recipe

So you made a prime rib roast and are lucky enough to have leftovers, make this Leftover Prime Rib Sandwich Recipe. Thinly sliced prime rib, horseradish mayo, caramelized onions and fresh greens make this the ultimate sandwich experience. Great for lunch or dinner.

ciabbatta roll stuffed with prime rib, caramelized onions, greens and mayo

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Prime Rib Caramelized Onion Sandwiches

These prime rib sandwiches come together quite easily using leftover prime rib roast. Slice the prime rib thin, caramelize some onions, mix the horseradish mayo then just assemble. Done.

Make this Boneless Prime Rib Roast In The Oven. Then make these Caramelized Onions for these awesome prime rib sandwiches.

I take my sandwiches very seriously. There are no plain mustard and bologna on white bread sandwiches happening at my house. These prime rib sandwiches are perfect without being overly fussy.

What To Serve With Prime Rib Sandwiches

The Prime Rib + Caramelized Onion Sandwiches could be considered a meal all on their own. But here are a few recipes that will go well served alongside:

Avocado Tomato SaladCaprese Pasta SaladOven Roasted PotatoesPressure Cooker Artichokes

open faced sandwich with prime rib, caramelized onions and greens

Ingredients Needed For Caramelized Onion Prime Rib Sandwiches (screenshot for grocery list)

  • Leftover Prime Rib
  • Ciabatta, French or Sour Dough Rolls
  • Sweet Onions
  • Prepared Horseradish
  • Mayonnaise
  • Spring Mix Greens

How To Make Leftover Prime Rib Sandwiches

  1. Prepare caramelized onions.
  2. Thinly slice the prime rib, as close to shaved as possible. (I leave it cold. If preferred, heat quickly in a skillet just until warm.)
  3. Mix mayo and horseradish.
  4. If toasting bread, brush with oil from caramelized onions and toast in the oven.
  5. Spread horseradish mayo onto top and bottom of rolls. Layer greens, prime rib, onions and more greens. Serve.

Here are more sandwich recipes for all of you sandwich fans:

Hot Italian SandwichesBaked Pepperoni Pizza SandwichesCrockpot Pulled Pork Cuban SandwichesBaked Muffalata Sandwiches

hand holding prime rib sandwich

open faced sandwich with prime rib, caramelized onions and greens

Leftover Prime Rib Sandwich Recipe

Yield: 2
Prep Time: 5 minutes
Total Time: 5 minutes

So you made a prime rib roast and are lucky enough to have leftovers, make this Leftover Prime Rib Sandwich Recipe. Thinly sliced prime rib, horseradish mayo, caramelized onions and fresh greens make this the ultimate sandwich experience. Great for lunch or dinner.

Ingredients

  • 1 Lb Leftover Prime Rib - sliced thin
  • 2 Ciabatta, French or Sourdough Rolls
  • 1 Lb Sweet Onions
  • Oil
  • 1-2 Tablespoons Prepared Horseradish
  • 1/4 Cup Mayonnaise
  • Spring Mix Greens

Instructions

    1. Prepare Caramelized Onions.
    2. Thinly slice the prime rib, as close to shaved as possible. (I leave it cold. If preferred, heat quickly in a skillet just until warm.)
    3. Mix mayo and horseradish.
    4. If toasting bread, brush with oil from caramelized onions and toast in the oven.
    5. Spread horseradish mayo onto top and bottom of rolls. Layer greens, prime rib, onions and more greens. Serve.

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Nutrition Information
Yield 2 Serving Size 1
Amount Per Serving Calories 1250Total Fat 92gSaturated Fat 29gTrans Fat 0gUnsaturated Fat 54gCholesterol 209mgSodium 669mgCarbohydrates 46gFiber 5gSugar 16gProtein 59g

Nutritional information on WonkyWonderful is provided as a courtesy and is approximate only. We cannot guarantee the accuracy of the nutritional information given for any recipe on this site.

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