French Dip Sliders

These roast beef sliders are slightly spicy, with a creamy, cheesy filling – with the perfect crunch from the crispy fried onions. They are a perfect appetizer for large gatherings or when you need a satisfying dinner in a hurry.

Did you know that roast beef sliders can be frozen ahead of time? A meal like this is perfect when you need to pull something out of the freezer earlier in the day, and have it ready to bake for dinner. For tips and tricks on how to do just that, we would love to have you join us in our Freezer Meals 101 Club where we walk you through the process step-by-step.

French Dip Sliders

Ingredients:

• 12 buns
• 1 lb. deli roast beef sliced thin
• 1 cup mozzarella cheese shredded
• 1 cup crispy fried onions
• ¼ cup horseradish
• 2 Tbsp. mayonnaise
• ½ cup butter melted
• ½ packet au jus gravy mix
• 1 tsp. Worcestershire sauce
• 1 Tbsp. sesame seeds
• 1 9×13 foil tray or casserole dish

Assembly Instructions:

1. Slice buns lengthwise and open like a book. Place the bottom half in a 9×13 foil pan or freezer safe casserole dish.
2. Mix together mayonnaise and horseradish in a small bowl. Spread over the bottom half of the buns. Layer ½ the cheese, then roast beef, then fried onions, then the remaining half of the sliced cheese. Replace “lid” on the buns.
3. In a small bowl mix together melted butter, ½ packet of au jus mix, and 1 tsp. Worcestershire sauce. Brush over the buns and sprinkle with sesame seeds.

Cooking Instructions:

1. Bake at 350° uncovered for 20-30 minutes.
2. Serve with au jus for dipping.

What to Serve with French Dip Sliders:

When serving these sliders as a meal, options are limitless. But when the goal is quick and easy, I like to serve them with chopped vegetables with our family’s favourite dips. That bagged salad in your fridge begging to get used is also an excellent choice.

How to Store Leftovers:

Any leftovers can be wrapped tightly in foil or plastic wrap and stored in the refrigerator for 3-4 days. Prepared sliders can be frozen by wrapping each one in plastic wrap, then placing each individual slider into a freezer bag. These make great lunches for kids or adults as they have time to thaw until lunch time, then just pop them into the microwave for a quick reheat. If you have access to an air fryer, reheat them at 360° for a few minutes.

For more recipes like this, try our Breakfast Sliders which make a protein packed breakfast quick and easy. And if the slight spice in these sliders don’t agree with your family, our Pizza Sliders or Ham and Cheese Sliders are always a hit.

Print

French Dip Sliders

Prep Time

10 mins

Cook Time

30 mins

 

Course: Appetizer, Lunch, Main Course

Servings: 6

Calories: 732 kcal

Ingredients

• 12 buns
• 1 lb. deli roast beef sliced thin
• 1 cup mozzarella cheese shredded
• 1 cup crispy fried onions
• ¼ cup horseradish
• 2 Tbsp. mayonnaise
• ½ cup butter melted
• ½ packet au jus gravy mix
• 1 tsp. Worcestershire sauce
• 1 Tbsp. sesame seeds
• 1 9 x13 foil tray or casserole dish

Instructions

Instructions:

Assembly instructions:

1. Slice buns lengthwise and open like a book. Place the bottom half in a 9×13 foil pan or freezer safe casserole dish.
2. Mix together mayonnaise and horseradish in a small bowl. Spread over the bottom half of the buns. Layer ½ the cheese, then roast beef, then fried onions, then the remaining half of the sliced cheese. Replace “lid” on the buns.
3. In a small bowl mix together melted butter, ½ packet of au jus mix, and 1 tsp. Worcestershire sauce. Brush over the buns and sprinkle with sesame seeds.

Cooking instructions:

1. Bake at 350° uncovered for 20-30 minutes.

   Serve with au jus for dipping.