Roast Beef Crostini

A Note From feedfeed

For an easy holiday appetizer, look no further than this Roast Beef Crostini made w/ Sir Kensington's Avocado Oil Mayonnaise! Served on a garlicky, toasted baguette, these two-bite starters are the perfect way to get your party going. You might want to go ahead & make a double batch of this caper-herb spread, because it’s the perfect condiment for sandwiches, wraps & toasts.

Recipe Card


  • 1 French baguette, cut into ½ inch slices
  • 2 tablespoons extra-virgin olive oil, divided
  • 2 large garlic cloves, halved
  • 1/2 cup Sir Kensington’s Avocado Oil Mayonnaise
  • 1/3 cup mixed fresh herbs (parsley, dill and chives)
  • 2 tablespoons capers, drained and rinsed
  • 1 tablespoon horseradish
  • Kosher salt, to taste
  • Freshly ground black pepper, to taste
  • 1 pound rare, thinly-sliced roast beef
  • 1 handful fresh arugula
  • Freshly shaved Parmesan, as needed
  • Fresh lemon juice, to taste
  • Flaky salt


  • Step 1

    Preheat oven to 425°F and line a baking sheet with parchment paper.

  • Step 2

    Arrange crostinis on baking sheet and drizzle with 1 tablespoon of olive oil. Toast in oven until golden brown, about 6-8 minutes. Remove from oven and rub each crostini with interior of garlic cloves.

  • Step 3

    In a small bowl, combine mayonnaise, herbs, capers, and remaining 1 tablespoon of olive oil. Season with salt and pepper to taste.

  • Step 4

    Spread caper-herb mayonnaise on each crostini and top with one slice of roast beef, a couple arugula leaves, fresh Parmesan, a squeeze of lemon, and flaky salt. Serve immediately.