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Home » Recipes » Roast Beef Crostini with Horseradish Cream

Roast Beef Crostini with Horseradish Cream

Published: Dec 18, 2021 · Modified: Aug 23, 2022 · Amy Casey · Leave a Comment

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Roast Beef Crostini with Horseradish Cream is an easy to make appetizer that feel a little bit fancy. Thin slices of deli roast beef top toasty crostini along with a tangy horseradish cream, arugula, a sprinkle of Gruyere cheese and diced tomatoes. They are perfect for your next party and are SO GOOD!

crostini topped with roast beef

Roast Beef Crostini are a favorite appetizer recipe! I recently made them for a holiday cocktail party as a group of neighborhood friends gathered to kickoff the Christmas season. My big tray of these 2 bite roast beef appetizers were a hit! They were gobbled up in no time at all.

Crispy yet soft crostini is topped with a tangy horseradish cream, peppery arugula, thin slices of roast beef, nutty Gruyere cheese and bright red tomato. The combination of flavors is DELICIOUS!

roast beef, bread, tomato, horseradish, mayonnaise, sour cream

the ingredients for roast beef crostini

  • a long baguette or skinny loaf of bread
  • extra virgin olive oil
  • kosher salt
  • sour cream
  • mayonnaise
  • prepared horseradish ~ Available at the grocery store and usually in the condiment aisle. It’s a jar of grated horseradish, vinegar and salt.
  • arugula ~ A leafy green with a peppery taste.
  • deli roast beef
  • shredded Gruyere cheese
  • diced tomato

my cooking videos

how to make crostini

I struck upon the perfect crostini recipe while sipping wine and nibbling on appetizers at my friend Linda’s home. She had the perfect crostini as it was slightly crisp and just a little soft. It is ideal accompaniment to my basil hummus, pimento cheese, creamy New England Clam chowder, and these roast beef crostini.

Cut a long thin loaf of bread into 1/2 inch slices. Brush with extra virgin olive oil and sprinkle with kosher salt.

In a hot cast iron skillet (a large sauté pan will work too), quickly toast each side of the bread slices. Flip the bread after a minute or so for the perfect crostini. Serve warm or at room temperature.

steps for making roast beef crostini

  • Toast the bread ~ In a hot pan, quickly toast slices of a long thin loaf that are brushed with extra virgin olive oil and sprinkled with kosher salt.
  • Mix the horseradish cream ~ In a small bowl, combine the sour cream, mayonnaise, and prepared horseradish.
  • Assemble the roast beef crostini ~ For each beef appetizer, spread some of the horseradish cream on a crostini. Top with a couple arugula leaves, about a half slice of deli roast beef, another dab of the horseradish cream, some shredded Gruyere cheese and diced tomato.
platter with crostini with roast beef

chef tips for making roast beef crostini

  • Use a thin loaf of bread for the crostini ~ for the perfect 2 bite appetizer, choose a loaf of bread that is about 2 to 3 inches in diameter.
  • Ask the deli counter to thinly slice the roast beef ~ My first choice for the roast beef is medium rare Boar’s Head which is available at most deli counters.
  • Substitute your favorite semi hard cheese ~ some tasty choices are pepper jack, Swiss, Gouda and sharp cheddar.
  • Make roast beef crostini in advance ~ There’s no need for last minute prep for these easy yet fancy appetizers. Make them up to 2 hours in advance. Store in the refrigerator covered lightly with plastic wrap.
cutting board toasted bread topped with sour cream horseradish and shredded cheese

If you make Roast Beef Crostini, I’d love hearing from you. Be sure to leave a comment and/or give this recipe a rating ~ I do my best to reply to all your comments. And snap a photo to post to Instagram. I’ll add the photos to my Insta stories as I love seeing all your creations.

Also check out my Facebook and Pinterest pages for lots of fabulous foodie stories, videos, cooking tips, and recipes.

roast beef crostini with horseradish cream

more appetizer recipes to try

  • Easy Antipasto Skewers
  • Everything But the Bagel Chicken Bites
  • BLT Bites
  • Cucumber Watermelon Appetizers with Blue Cheese
  • Crispy Baked Chicken Wings
  • Cheeseburger Sliders
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1 crostini topped with roast beef and shredded cheese

Roast Beef Crostini with Horseradish Cream


  • Author: amycaseycooks
  • Total Time: 20 minutes
  • Yield: 20 crostini 1x
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Description

Roast Beef Crostini are an easy to make appetizer that feel a little bit fancy. Thin slices of deli roast beef top toasty slices of baguette along with a tangy horseradish cream, arugula, a sprinkle of Gruyere cheese and diced tomatoes. They are perfect for your next party and are SO GOOD!


Ingredients

Units Scale
  • a long baguette or skinny loaf of bread, sliced 1/2 inch thick, about 20 slices
  • extra virgin olive oil
  • kosher salt
  • 1/4 cup sour cream
  • 1 tablespoon mayonnaise
  • 1 tablespoon prepared horseradish
  • 1 cup arugula
  • 1/2 pound deli roast beef, thinly sliced
  • 1/2 cup finely shredded Gruyere cheese
  • 1 small tomato, diced

Instructions

  1. Place the bread slices on a work surface. Lightly brush both sides with extra virgin olive oil and sprinkle with kosher salt.
  2. Heat a cast iron skillet or large sauté pan over medium high heat. Add the bread slices and toast until lightly golden brown on each side ~ about 1 minute per side. Remove to a large plate.
  3. In a small bowl, combine the sour cream, mayonnaise, and horseradish.
  4. To assemble each appetizer, spread about 1 to 2 teaspoons of the horseradish cream on a crostini. Top with a couple leaves of arugula, about 1/2 slice of roast beef, a dab of horseradish cream, a sprinkle of Gruyere cheese and a couple pieces of diced tomato.
  5. Place the roast beef crostini on a large platter and serve.

Notes

  • Use a thin loaf of bread for the crostini ~ for the perfect 2 bite appetizer, choose a loaf of bread that is about 2 to 3 inches in diameter.
  • Ask the deli counter to thinly slice the roast beef ~ My first choice for the roast beef is medium rare Boars Head which is available at most deli counters.
  • Substitute your favorite semi hard cheese ~ some tasty choices are pepper jack, Swiss, Gouda and sharp cheddar.
  • Make roast beef crostini in advance ~ There’s no need for last minute prep for these easy yet fancy appetizers. Make them up to 2 hours in advance. Store in the refrigerator covered lightly with plastic wrap.
  • Prep Time: 15 minutes
  • Cook Time: 5 minutes
  • Category: appetizer
  • Method: cook on stove top
  • Cuisine: American

Nutrition

  • Serving Size: 1 crostini
  • Calories: 55
  • Sugar: 0.3 g
  • Sodium: 101 mg
  • Fat: 3.2 g
  • Saturated Fat: 1.3 g
  • Unsaturated Fat: 0 g
  • Trans Fat: 0 g
  • Carbohydrates: 1.9 g
  • Fiber: 0.1 g
  • Protein: 4.7 g
  • Cholesterol: 15 mg

Keywords: beef crostini, beef appetizer, roast beef appetizer, easy appetizer

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Welcome to amycaseycooks where I share recipes my personal chef clients love and family favorites made in my tiny Jersey shore kitchen. As you have probably guessed, my name is Amy Casey. My lifelong love of food lead me to my personal chef business as well as sharing my recipes and cooking tips with you. Visit my About page to learn more about my culinary journey. Thanks for stopping by amycaseycooks!

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