Prime Rib with Caramelized Onion Sandwiches Recipe - Pillsbury.com

Prime Rib with Caramelized Onion Sandwiches Recipe - Pillsbury.com

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Our favorite way to use leftover prime rib is piling it on French loaf with caramelized onions and classic horseradish sauce.

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Ingredients

  • 1 can (11 oz) refrigerated Pillsbury™ Original French Bread
  • 2 tablespoons butter
  • 2 cups thinly sliced yellow onion (1 large)
  • 1/4 teaspoon salt
  • 2 tablespoons prepared horseradish cream or sauce
  • 8 oz thinly sliced cooked beef prime rib
  • 1 cup fresh baby arugula

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