The Best Roast Beef Sandwich Recipe

This recipe makes the best roast beef sandwiches – tender, juicy roast beef is covered in creamy garlic sauce for a delicious sandwich that you will not want to put down!

The Best Roast Beef Sandwich Recipe

The best roast beef sandwiches are ones that combine soft white bread rolls and melt in your mouth roast beef. This one does not disappoint in that it has those things with the addition of a delicious homemade garlic aioli and fresh lettuce.

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In my opinion, a good roast beef sandwich starts with the most amazing beef roast. Use this easy sirloin tip roast beef recipe to make a roast that you can later cut into slices.

Alternately, you can go to the deli counter and ask for their best cut of meat. Have the butcher cut it into thick slices to use in this recipe. The thicker cut of meat adds to the rich flavour of this sandwich.

The Best Roast Beef Sandwich Recipe

Next, you’ll want to make a quick sauce to pair with the roast beef. We love this roasted garlic aioli recipe, it’s really what makes this sandwich so delicious and flavourful.

We have some variations and suggestions at the bottom of the post if you don’t have time to make the sauce. But we highly recommend that you do! It’s super easy and totally worth it.

The Best Roast Beef Sandwich Recipe

Let’s get started! Here are a few of the things that you’ll need to have in the kitchen…

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Supplies:

Mouth Watering Roast Beef Recipe

Roast Beef Sandwiches Recipe:

Ingredients:

  • 4 brioche style buns
  • 2 cups (500g) leftover roast beef, thinly sliced*
  • 1/2 cup homemade garlic aioli**
  • Butter lettuce or green leaf lettuce

*deli roast beef works as well but we love to use the leftovers from this mouth watering roast beef recipe. They make the best roast beef sandwiches!

**mayonnaise can be used instead of aioli, yawn.

Roast Beef Sandwich Ingredients

Directions:

1. Thinly slice the roast beef.

Roast Beef Sandwich Process

2. Open the buns and cover both sides with aioli. Place on a parchment lined baking sheet.

Roast Beef Sandwich Process

3. Toast the buns, open faced in the oven on low broil setting for a minute or two.

The Best Roast Beef Sandwich Recipe

4. Layer the bottom bun with roast beef, more garlic aioli, lettuce and add the top bun.

This recipe makes 4 beef sandwiches and is the perfect way to use roast beef leftovers and create a whole new meal for the family. The leftovers can be covered in plastic wrap or put in an airtight container and refrigerated for up to three days.

The Best Roast Beef Sandwich Recipe

The beauty of this leftover roast beef recipe is that it’s super versatile!  We, of course, love it just as it is but you can add literally any kind of topping that you choose! Cheese sauce, blue cheese, mustard, horseradish mayo… the sky is the limit.

The Best Roast Beef Sandwich Recipe

If you want to mix it up there are a ton of delicious ways to create a leftover roast beef sandwich. I would love to see the beef sliced and layered in french bread with melted provolone cheese like this campfire philly cheesesteak sandwich. Its one of our all time favorite sandwich recipes!

The Best Roast Beef Sandwich Recipe

Tips & Substitutions:

  • Try making this creamy horseradish sauce or alabama white sauce to use instead of aioli. Even our homemade bbq sauce would be delicious!
  • Add red onion, caramelized onions, plum tomatoes, sauteed red peppers or slices of roma tomato.
  • Change it up by adding mozzarella cheese, pepper jack cheese or cream cheese.
  • Use deli meat, like sliced roast beef or prime rib instead of a homemade roast.
  • Instead of brioche use hoagie buns, garlic bread or hawaiian rolls.
  • Try this beef french dip, its our favorite beef crock pot recipe!
  • Have more leftovers? Make these yummy roast beef sliders.
The Best Roast Beef Sandwich Recipe

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Roast Beef Sandwich Recipe

Roast Beef Sandwich Recipe

Yield: 4
Prep Time: 15 minutes
Total Time: 15 minutes

This recipe makes the best roast beef sandwiches - tender, juicy roast beef is covered in creamy garlic sauce for a delicious sandwich that you will not want to put down!

Ingredients

  • 4 brioche style buns
  • 2 cups (500g) leftover roast beef, thinly sliced
  • 1/2 cup homemade garlic aioli
  • Butter lettuce or green leaf lettuce

Instructions

1. Thinly slice the roast beef.

2. Open the buns and cover both sides with aioli. Place on a parchment lined baking sheet.

3. Toast the buns, open faced in the oven on low broil setting for a minute or two.

4. Layer the bottom bun with roast beef, more garlic aioli, lettuce and add the top bun.

Nutrition Information:
Yield: 4 Serving Size: 1
Amount Per Serving: Calories: 502Total Fat: 35gSaturated Fat: 11gTrans Fat: 0gUnsaturated Fat: 23gCholesterol: 136mgSodium: 475mgCarbohydrates: 38gFiber: 2gSugar: 7gProtein: 10g

All values are approximate and based on ingredients used by the recipe writer. Always calculate your own individual nutritional values for the most accurate calculation.

Did you make this recipe?

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about heather

Hello, I’m Heather!

I'm an active mom of twin boys who is always looking for opportunities to inspire creativity through fun crafts, do-it-yourself projects and delicious recipes. This blog has been an integral part of supporting my little family and I am so grateful to have you become a part of our journey! Let's create together... Read more...

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You forgot to give the recipe for that aioli.