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A Beef Tenderloin Slider, hot and fresh from the oven.

Beef Tenderloin Sliders

These Beef Tenderloin Sliders are on sweet Hawaiian slider buns with caramelized red onions, zesty horseradish sauce, and melted cheese.
Servings: 12 sliders
Chef Alli
Print Recipe Pin Recipe
Prep Time 20 minutes
Cook Time 15 minutes
Total Time 35 minutes

Ingredients
 

Horseradish Sauce

  • 1/2 cup mayonnaise
  • 1/4 cup ketchup
  • 2 Tbs. Worcestershire sauce
  • 2 Tbs spicy brown mustard
  • 3 Tbs sweet pickle relish
  • 1 tsp. prepared horseradish optional but delicious!

Caramelized Onions

  • olive oil
  • 3 medium red onions sliced thin
  • 1/4 cup Worcestershire sauce

Beef Tenderloin Sliders

  • 1 1/2 - 2 lbs. thinly sliced fully cooked beef tenderloin, chopped we prefer medium-rare, room temperature
  • 12 oz. pkg. King’s Hawaiian Original Sweet Rolls, 12 count
  • 4 oz. shredded cheese I used Jalapeno Havarti, may substitute any cheese preferred, such as provolone or cheddar
  • 1/3 cup crispy onions, such as Fresh Gourmet brand optional
  • 1/4 cup butter, melted

Instructions
 

Make the Sauce

  • In a medium mixing bowl, combine the ketchup, mayonnaise, mustard, Worcestershire sauce, relish and horseradish; stir until sauce is well blended, then reserve.

Caramelize the Onions

  • In a large skillet over medium heat, add a good swish of olive oil. When the oil is nicely hot, add the onions to the skillet, along with the Worcestershire sauce.
  • Cook the onions until they soften and caramelize, adding a bit of liquid (such as broth, wine, or water) to the onions as they cook to keep them moist, if needed. Reserve and keep warm.

Assemble the Beef Tenderloin Sliders

  • Preheat the oven to 350 degrees F.
  • Leave the sheet of Hawaiian rolls intact; slice the entire sheet in half horizontally, separating the top from the bottom. Place the bottom sheet into a 9x13 pan or onto small rimmed baking sheet.
  • Spread the bottom sheet of rolls with an even layer of the warm caramelized onions; top with the chopped beef tenderloin then drizzle as much of the prepared sauce over the beef as desired.
  • Sprinkle with shredded cheese and fried onions (if using), then top with the top sheet of rolls; brush with melted butter.
  • Bake the sliders for 12-15 minutes, uncovered, on the center oven rack until hot throughout and the top buns are a deep, golden brown.
  • Let the sliders cool slightly, then transfer the entire sheet to a large cutting board and slice it apart. Serve at once.

Nutrition

Calories: 437kcalCarbohydrates: 23gProtein: 19gFat: 30gSaturated Fat: 11gPolyunsaturated Fat: 5gMonounsaturated Fat: 10gTrans Fat: 0.02gCholesterol: 74mgSodium: 481mgPotassium: 369mgFiber: 1gSugar: 7gVitamin A: 111IUVitamin C: 4mgCalcium: 72mgIron: 2mg
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