Enter leftover prime rib sandwiches! It’s a fun way to transform an elegant dinner into a casual meal.
Bread: I love classic French bread or baguette, but you can use ciabatta bread, Italian bread, or even a hoagie roll to make it more of a prime rib sub. Prime rib: Use leftover Prime Rib that’s thinly sliced or shaved (more on this below) or even smoked prime rib. While prime rib is the meat of choice today, you can use this same recipe for any slow-roasted meat, like Pot Roast, corned beef, pastrami, or leftover roast beef. Condiments: Creamy Horseradish Sauce with Sour Cream is classic, or go for a healthier approach with Horseradish Yogurt Sauce. Or, keep it simple by whipping together a horseradish mayo, or simply use plain mayonnaise, stone ground, or Dijon mustard. Cheese: I love slices of provolone cheese, but you can also use Havarti, Swiss cheese, mild white cheddar cheese, or Pepper Jack cheese as well. Baby arugula: Peppery arugula cuts through the richness of the meat and cheese, but feel free to use thinly sliced romaine, iceberg lettuce, or even mixed greens. Sweet caramelized onions: Rich caramelized onions take this prime rib leftover sandwich up a notch, but you can keep it simple with sliced onions, Pickled Red Onions, sautéed onion, or Sauteed Shiitake Mushrooms.
Storage: Wrap the leftover prime rib roast (or assembled sandwiches) tightly in plastic wrap or keep it in an airtight container. Store the sandwiches in the fridge for 1 day and the prime rib for up to 3 days. Reheat sandwiches: If reheating the entire sandwich the next day, remove the arugula and wrap the sandwich in foil. Then, reheat sandwiches in a low oven (250 – 300 degrees F) for 10-15 minutes or until warmed to your liking.
Open Face Prime Rib Sandwich: Slice the bread all the way through and serve it open-faced with an extra slice of cheese on each side. Prime Rib Panini: Use sliced sourdough or ciabatta and press it on a panini press. Or, press the sliced prime rib sandwiches down in a large skillet with a baking sheet weighed down with a skillet or small saucepan. You can also use a panini press if you have one. Prime Rib Wrap: Wrap all the workings of a prime rib sandwich in your favorite flatbread, like Lavash Bread, pita bread, or corn tortillas. Leftover Prime Rib Sliders Recipe: Purchase a package of slider buns or make Homemade Brioche Rolls and assemble the sandwiches as directed.
What to Serve with Prime Rib Sandwiches?
Whether you want a sauce for prime rib sandwiches or some extra side dishes to make it more filling, here are my favorites ways to serve:
Au Jus Sauce: Serve a classic French Dip sandwich by simply having some warm Au Jus Sauce in a small bowl on the side. Dip and enjoy! Horseradish Sauce: Serve with extra horseradish sauce on the side to wake up your taste buds. Gravy: If you have some leftover beef gravy, it would make a good dipping sauce or a drizzle. Coleslaw: Give it some crunch with some Yogurt Coleslaw or No Mayo Coleslaw on the side. Roasted Vegetables: Balance this hearty meal with some roasted vegetables, like Roasted Asparagus or Air Roasted Red Potatoes, served on the side – or right on top of the sandwich! Green Salad: Keep it light with a simple green leafy salad such as my Spring Mix Salad or Butter Lettuce Salad. Pickle Spears: I love any type of sandwich with pickle spears, and it gives it that special deli appeal. Go for traditional pickles or Gherkins.
