French Onion Beef Sliders

These French Onion Beef Sliders are a quick, easy, and a delicious appetizer for any party from tailgates to a holiday starter or side dish. By using ground beef as the filling, they are ready to serve in about 30 minutes and have all your favorite caramelized onion flavors in every bite.

These French Onion Beef Sliders are stacked with rich, savory layers that make every bite feel indulgent. A perfectly seasoned ground beef layer with garlic and a touch of balsamic creates a flavorful base, topped with deeply caramelized onions that add sweetness and depth. A generous layer of creamy Boursin melts right in, bringing a tangy, herby richness that ties everything together.

Made in about 30 minutes, with many steps that are easy to prepare ahead of time, these French Onion Sliders are the perfect simple recipe that yields big flavor results. I’ve had friends tell me they’re restaurant-worthy thanks to their layers of rich flavor.

They’re the perfect game day appetizer or a fun holiday side that feels a little elevated but is still easy to serve (and even easier to devour). They’re the coziest and heartiest appetizer you will make all season long. If you are in need of more appetizer inspiration, my Cranberry Brie Pull Apart Rolls or my Healthy French Onion Dip are two others to try.

Why You’ll Love this Recipe

• 10 ingredient appetizer. Yes, it doesn’t take much to make these French onion sliders that your family and friends will devour.
• Perfect to start any meal. Whether it’s an afternoon snack or a true appetizer, they are delicious.
• All the French onion flavor. With the seasoned ground beef and rich caramelized onions, every bite is packed with pure decadence.

Ingredients

• 
  Potato rolls: The chewy bun base of this siders recipe. You could also use Hawaiian rolls.
• Ground beef: Make sure it’s on the leaner side, and if not, then drain any excess fat from the cooked meat before topping the buns.
• Boursin cheese: You could double this if you want it really cheesy.
• Sweet onion: Will be caramelized for the perfect French onion bite.
• Chives: Adds nice light onion flavor.
• Neutral oil: Cooking oil for the recipe – use avocado or canola here.
• Garlic powder: Adds nice garlic flavor.
• Butter: A little bit of richness to add to the sliders.
• Balsamic: Gives some tang to the beef mixture.
• Balsamic glaze: Adds more balsamic flavor in a deliciously addicting sweet glaze.

How to Make French Onion Beef Sliders

1. Using a mandolin, or carefully with a knife, thinly slice onions. Add butter to skillet and then add onions. Cook on medium heat, stirring often for about 25-35 min or until onions have softened completely and become jammy and browned. If pan gets dry, add a little splash of water to keep from sticking or burning. 

2. Add neutral oil to skillet and add garlic clove. Cook for about 2 min and then add ground beef. Season with salt and pepper. Cook, breaking the beef up with a wooden spoon into small pieces, until cooked through, about 5 minutes. Add balsamic, and garlic powder. Cook, stirring constantly, until deeply browned in spots, about 2 minutes.

3. Add one wheel of Boursin cheese and add directly to the warm pan. With the skillet on low, gently fold the cheese into the beef until everything is creamy, smooth and combined.

4. Slice open potato rolls. Add a layer of boursin ground beef and a layer of caramelized onions. Dice chives and sprinkle overtop along with another drizzle of balsamic glaze. Close and serve. Enjoy! 

Expert Tips

• Don’t try to speed up the caramelization of the onions. It takes a while to do it correctly, but let me tell you, it’s so worth it for their jammy texture and sweet flavor. If you think they are about to burn, just add a splash of water to the pan and continue cooking.
• Try another cheese. You can easily swap the Boursin for shredded Gruyere or Swiss if you’d like.
• Use a lean ground beef. This prevents the sliders from become too greasy while cooking.
• Add some mushrooms. If you want, you can saute some sliced baby bella mushrooms to add into the meat mixture for extra heartiness.
• Let everyone assemble their own. Depending on the type of party you are having, you could either assemble the sandwiches in advance, or make a sliders bar where guests can assemble their own.

Storage

Store any leftover beef sliders in the fridge for up to 2 days. Reheat in the microwave for a few seconds or even in the oven or the toaster oven too. The best method for storing these sliders is to keep the meat separate from the bun. Rewarm the beef mixture on its own, then place onto the slider bun.

We don’t recommend freezing the sliders, but you can easily freeze the meat or onion mixture for up to 2 months. Thaw and reheat before serving.

If you want to make the sliders in advance, it’s easy to make both the onions and beef ahead of time and rewarm them when it’s time to serve.

FAQs

More Easy Appetizer Recipes

• Goat Cheese and Jam Puff Pastry Twists
• Jalapeno Poppers 3 Ways
• Cheesy Smashed Brussels Sprouts
• Whipped Goat Cheese Dip with Cranberry