These filet mignon sliders bring together premium beef medallions seared to a perfect medium-rare and pillowy brioche buns toasted with a savory garlic parmesan butter.
Each slider is layered with peppery arugula, sliced roma tomatoes, and sharp red onion, finished with an optional drizzle of horseradish cream that cuts through the richness beautifully.
Ready in just 50 minutes from start to finish, they strike the ideal balance between impressive presentation and approachable preparation, making them a standout choice for dinner parties, holiday gatherings, or any occasion that calls for something a little extraordinary.
My neighbor Dave stopped by one December evening with a bottle of Pinot Noir and a challenge: could I turn filet mignon into party food? The kitchen filled with garlic butter and searing beef, and by the time those little sliders came together, three other neighbors had followed their noses to my front door.
I burned the first batch of buns because I got distracted telling a story about my dog stealing a steak off the counter. The second batch came out perfectly golden, and honestly the slight char on the first ones disappeared quickly under a pile of arugula and horseradish cream.
Ingredients
- 8 small brioche or slider buns: Brioche brings a subtle sweetness and softness that holds up to juicy steak without falling apart.
- 4 tbsp unsalted butter, melted: Unsalted gives you control over the salt level in the garlic spread.
- 3 cloves garlic, minced: Fresh garlic only here, the jarred stuff will not give you the same punch.
- 1/4 cup freshly grated parmesan cheese: Grate it yourself off the block for the best melt and texture.
- 1 tbsp fresh parsley, finely chopped: Adds color and a brightness that cuts through the richness.
- Pinch of sea salt: Just a pinch to lift the garlic butter, not overpower it.
- 1 1/2 lbs filet mignon, cut into 8 medallions: About 2 oz each keeps the portions slider sized and easy to eat in a few bites.
- 1 tbsp olive oil: A neutral high heat oil works too, but olive oil adds a nice flavor foundation.
- 1 tsp kosher salt and 1/2 tsp black pepper: Season the medallions generously on both sides right before searing.
- 1/2 cup arugula or baby greens: Arugula brings a peppery bite that pairs surprisingly well with the richness of filet.
- 1 medium red onion, thinly sliced: Soak the slices in ice water for ten minutes if you want to tame the raw bite.
- 2 roma tomatoes, sliced: Roma tomatoes have less moisture, which keeps your buns from getting soggy.
- 1/4 cup horseradish cream or aioli (optional): This is optional in the recipe but not optional in my kitchen, it ties everything together.
Instructions
- Preheat and prepare:
- Set your oven to 375 degrees and line a baking sheet with parchment paper so the cheese does not stick and cleanup is effortless.
- Make the garlic parmesan butter:
- Stir together melted butter, minced garlic, parsley, sea salt, and parmesan in a small bowl until it smells impossibly good and you want to eat it with a spoon.
- Prepare the buns:
- Slice each bun in half and brush the cut sides generously with the garlic butter mixture, then arrange them cut side up on the baking sheet with an extra sprinkle of parmesan.
- Bake the rolls:
- Slide them into the oven for 7 to 9 minutes until the edges turn golden and your entire kitchen smells like an Italian bakery.
- Season the filet mignon:
- Pat the medallions completely dry with paper towels and season both sides with salt and pepper right before they hit the pan for the best crust.
- Sear the medallions:
- Heat olive oil in a heavy skillet over medium high heat until it shimmers, then sear each medallion 2 to 3 minutes per side for medium rare and let them rest on a plate for 5 minutes.
- Build the sliders:
- Layer arugula on each bottom bun, add the rested filet medallion, top with tomato and red onion slices, drizzle with horseradish cream, and crown with the top bun.
- Serve immediately:
- These are best while the rolls are still warm and the steak is juicy, so call everyone to the table the moment you finish assembling.
That night with Dave turned into a standing tradition where everyone brings a bottle of wine and I make something ridiculous with good ingredients.
Choosing the Right Cut
Filet mignon is the obvious choice here but sirloin or tenderloin work beautifully if you are feeding a crowd without wanting to empty your wallet. The key is cutting the portions small enough that each medallion cooks quickly and stays tender, since slider sized pieces overcook faster than you might expect.
Making It Your Own
Blue cheese crumbles crumbled over the hot medallion melt just enough to become a creamy, tangy layer that makes these feel even more indulgent. I have also tried caramelized onions, roasted red peppers, and even a smear of fig jam, and none of those ideas were mistakes.
Getting Ahead
You can bake the garlic parmesan rolls hours ahead and warm them in a low oven for two minutes right before serving, which takes the pressure off when guests are already in your kitchen stealing buns off the tray.
- Keep the sliced onion in ice water in the fridge so it stays crisp and loses its harsh bite.
- Horseradish cream can be mixed a day ahead and stored covered in the refrigerator.
- Always assemble at the very last minute so nothing gets soggy.
Good food does not need to be complicated to be memorable, and these sliders prove that every single time.
Your Recipe Questions Answered
- → How should I cook the filet mignon medallions for medium doneness?
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For medium doneness, sear the medallions for approximately 4 minutes per side in a hot skillet with olive oil. Use a meat thermometer to confirm the internal temperature reaches 145°F (63°C). Let them rest for 5 minutes before assembling the sliders so the juices redistribute properly.
- → Can I prepare the garlic parmesan rolls ahead of time?
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Yes, you can prepare the rolls up to a day in advance. Bake them as directed, let them cool completely, and store them in an airtight container. When ready to serve, warm them in a 300°F oven for about 5 minutes to restore their golden crispness and fragrant garlic aroma.
- → What can I substitute for filet mignon to keep costs lower?
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Sirloin or beef tenderloin are excellent budget-friendly alternatives that still deliver great tenderness and flavor. Cut the meat into equal-sized medallions about 2 ounces each, and follow the same seasoning and searing method. The cooking time may vary slightly depending on thickness.
- → What wine pairs well with these sliders?
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A light red wine such as Pinot Noir complements the richness of the filet mignon without overpowering the garlic and parmesan flavors. A medium-bodied Cabernet Franc or a smooth Merlot also work beautifully. For white wine lovers, an oaky Chardonnay can stand up to the buttery parmesan rolls.
- → How do I store and reheat leftover sliders?
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Disassemble the sliders and store the meat, buns, and toppings separately in the refrigerator for up to 2 days. Reheat the medallions gently in a skillet over low heat or in a 275°F oven until just warmed through. Refresh the buns in the oven for a few minutes and reassemble with fresh toppings.
- → Can I make the horseradish cream from scratch?
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Absolutely. Mix 3 tablespoons of prepared horseradish with 1/4 cup of sour cream, a squeeze of lemon juice, a pinch of salt, and a dash of black pepper. Adjust the horseradish quantity to your taste for more or less heat. This homemade version pairs wonderfully with the richness of the beef and parmesan rolls.