French Onion Roast Beef Slider Recipe

My French Onion Roast Beef Slider recipe is an easy dinner recipe or perfect appetizer for a crowd! These delicious little bites will make everyone happy and take only minutes to put together. Save this recipe so you can always find it!

Cooking for a crowd can be tough. And finding easy, flavorful recipes that please everyone can also be tough. However, this little French Onion Roast Beef Slider recipe is kind of magical because you can make it for a crowd and it will please everyone! Whether you’re making this for a get together or you just need an easy, dinner idea for the weeknight this one is a keeper.

Layers of flavor

When it comes to making my French Onion Roast Beef Slider recipe, it’s really about creating layers of flavor. I believe that layering flavor in all recipes is really kind of the key. (Along with salting appropriately.)

First, I start this with Hawaiian Roll. Let’s be honest, when you’re making sliders is there really any other sweet, delicious roll you want to use? Probably not.

Then adding on thinly sliced roast beef is the way to go. I like to lay several slices over all of the rolls to make sure the sandwiches feel, well, beefy. Ideally, you want to have about three pieces of roast beef laying across each roll.

Gruyère cheese is one of the most delicious cheeses out there and I used it here instead of provolone because of it’s creamy, sweet consistency. It also is the typical cheese that’s used on a french onion soup.

That brings me to the onions in the French Onion Roast Beef Slider recipe. They’re so important! Make sure to caramelize them appropriately. Take a little more time and keep stirring. Use extra olive oil to start with as explained in the printable recipe and then add butter. The olive oil has a higher burn rate than the butter so you always want to start with this when caramelizing in a saute pan.

Making the French Onion Roast Beef Slider recipe

• Making this recipe is simple. In fact, it’s probably one of the easiest recipes you will find.
• First, preheat the oven to 350 degrees. Then cut the buns lengthwise and set the tops aside.
• Tips for making this French Onion Roast Beef Slider recipe
• You only need about half a pound of roast beef for this recipe. I like to add 2-3 slices across the rolls and that’s plenty.
• You can use provolone cheese if you can’t find Gruyere. But, try to fin Gruyere. It’s so creamy and delicious that I feel like it truly elevates the sandwich.
• When it comes to making the butter topping, mix the spices into it so you can get them evenly distributed across the tops of the buns.
• You can also make this in full-sized sandwiches. Swap out the Hawaiian rolls for full sized buns and then follow the recipe directions. If you’re making more than 4, you might have to give them a little more time in the oven.
• You can save these in an airtight container for about 1 day in the refrigerator. I feel like the bread starts to act a little funny if you let them go longer than that.

Looking for other fast dinners or appetizer recipes?

Try these recipes for delicious appetizers!

• Buffalo Chicken Dip {HERE}
• Salmon Crostini Bites {HERE}
• Sausage Stuffed Mushrooms Caps {HERE}
• Reuben Sliders {HERE}
• Homemade Soft Pretzels {HERE}
• Spinach Artichoke Dip {HERE}

Try these recipes for fast dinners!

• Lemon and Artichoke Hearts Pasta {HERE}
• Sun Dried Tomato Pasta with Chicken {HERE}
• Chicken Tortilla Soup {HERE}
• White Bean Salad {HERE}
• Creamy Lemon Butter Pasta {HERE}

Thank you so much for visiting today, friends! You can find the full recipe for the French Onion Roast Beef Slider Recipe below. I hope you come back again!

French Onion Roast Beef Slider recipe

My French Onion Roast Beef Slider recipe is an easy dinner recipe or perfect appetizer for a crowd! These delicious little bites will make everyone happy and take only minutes to put together.

4.80 from 5 votes

Print Pin Rate

Course: Appetizer, dinner

Cuisine: American

Keyword: French Onion Roast beef slider recipe, french onion slider recipe, roast beef slider recipe, Roast Beef sliders

Prep Time: 15 minutes

Cook Time: 20 minutes

Servings: 6 people

Author: Rachel

Equipment

• Baking sheet

Ingredients

• 3 yellow onions, sliced thin
• 2 1/2 Tbsp. extra virgin olive oil
• 4 Tbsp. butter, divided
• 1 Tbsp. Worcester sauce
• 1/2 Ib. roast beef, sliced thin
• 1 1/2 cups Gruyere Cheese, shredded
• 3 Tbsp. thyme leaves, divided
• 1/2 tsp. garlic salt
• 1/2 tsp. onion powder
• Fresh cracked black pepper

Instructions

• Add olive oil to a pan and heat. Once warm add onions and cook 5 minutes stirring continuously.
• Add 2 Tbsp. of butter and continue to stir until the onions caramelize. 
• Before removing from pan mix in Worcestershire sauce and heat for one more minute.
• Cut Hawaiian rolls in half and layer roast beef onto the bottoms. 
• Then add the onions and grated Gruyère cheese.
• Add pepper and 1/2 the thyme leaves. 
• Place bun tops back on and brush with melted butter mixed with the garlic salt and onion powder.
• Add on the rest of the thyme leaves. 
• Tent with foil and bake at 350 for 10 minutes. Remove foil and bake another 10 minutes. Serve immediately.