There are leftovers you reheat because you need an easy meal, and then there are leftovers you actually look forward to turning into something completely new. This steak sandwich is definitely the second kind.

Whenever we have steak left from a weekend BBQ, this is one of my favorite ways to use it. Thin slices of juicy steak are layered onto a crisp toasted baguette with salty olive tapenade, sweet caramelized onions, ripe tomatoes, and peppery arugula.

What makes this sandwich so good is the balance of flavors and textures. The baguette brings the crunch, the tapenade adds a briny bite, the onions bring sweetness, and the tomato and arugula keep everything fresh.

It’s simple enough to throw together for lunch, but satisfying enough to make you want to grill extra steak just so you can make it again the next day.

Let’s turn those leftovers into the best sandwich of your weekend. The full recipe is just below.

The Ultimate Leftover Steak Sandwich

This leftover steak sandwich turns last night’s BBQ into the ultimate next-day meal. It’s layered with olive tapenade, juicy sliced steak, sweet caramelized onions, fresh tomato, peppery arugula, and a drizzle of olive oil on a crisp toasted baguette.

Print Recipe Pin Recipe

Ingredients Method Notes

Ingredients

  

• ½ crusty baguette lightly toasted
• Olive tapenade
• Sliced leftover steak
• Sweet caramelized onions
• Fresh tomato slices
• Peppery arugula
• Extra virgin olive oil

Method

 

1. Lightly toast the baguette until golden and crisp.
2. Generously spread olive tapenade on both sides of the baguette.
3. Layer on the sliced leftover steak.
4. Pile the caramelized onions over the steak.
5. Add fresh tomato slices.
6. Add a handful of arugula.
7. Finish with a drizzle of extra virgin olive oil.
8. Slice in half and prepare for the best bite of your weekend.

Notes

• This recipe works best with leftover grilled steak, but any tender sliced steak will work.
• For extra flavor, warm the steak slightly before assembling the sandwich.
• Serve right away to keep the baguette crispy.

WATCH IT COME TOGETHER

View this post on Instagram

A post shared by ANDREA DE NIEMEYER (@lekitchenbyad)

Many of the kitchen tools, serving pieces, and pantry staples I use can be found in my Amazon Storefront and ShopMy collections, where I’ve curated the items I genuinely use and love.

If you make this recipe, I’d love to hear what you think. Leave a comment below and let me know how it turned out or any personal touches you added along the way.

Don’t forget to bookmark this recipe for later and share it with someone who would enjoy it too. And if you post your creation on Instagram, tag @lekitchenbyad so I can see it and cheer you on from my kitchen.

SHOP THE POST

This post contains affiliate links. If you purchase something through my links, I may earn a small commission at no extra cost to you. I only recommend products I genuinely use and trust in my own kitchen.