Air Fryer Swiss Melt with Horseradish Sauce

This air fryer Swiss melt is layered with roast beef, Swiss cheese, and a creamy horseradish sauce for an easy, deli-style sandwich.

This Air Fryer Swiss Melt with Horseradish Sauce is an easy, no-fuss sandwich made with warm roast beef, melted Swiss cheese, and a creamy horseradish sauce.

Cooking the sandwiches open-faced in the air fryer helps everything heat evenly and keeps the cheese perfectly melty. It is a great option for a quick lunch or an easy dinner when you want something comforting without much effort.

Tips for Best Results

• Use thinly sliced roast beef – This ensures it warms quickly in the air fryer without drying out.
• Toast buns lightly first – If you like extra crisp edges, lightly toast the cut sides of the buns in the air fryer for 1–2 minutes before assembling.
• Even cheese coverage – Make sure the Swiss cheese slices fully cover the roast beef for uniform melting.
• Don’t overcrowd the basket – Air fry in a single layer to allow hot air to circulate and melt the cheese evenly.
• Adjust timing to your air fryer – Some models run hotter; start checking at 3 minutes to avoid over-melting or burning.
• Serve immediately – These sandwiches are best enjoyed right out of the air fryer when the cheese is gooey and the buns are still slightly crisp.
• Customize the sauce – Add more horseradish if you like a spicier kick, or a pinch of smoked paprika for a subtle twist.

Ingredients & Substitutions

• Mayonnaise – can use Greek yogurt or sour cream for a tangier version
• Prepared horseradish – horseradish cream or freshly grated horseradish works too
• Dijon mustard – yellow or spicy brown mustard are good alternatives
• Worcestershire sauce – soy sauce or a splash of balsamic vinegar can substitute
• Sesame hamburger buns – any sandwich roll, brioche, or sliced sourdough works
• Sliced roast beef – leftover roast beef, deli-style beef, or thinly sliced steak can be used
• Swiss cheese – Gruyère, provolone, or mozzarella are tasty alternatives

Looking for More Air Fryer Recipes?

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This flavourful and healthy air fryer asparagus side dish recipe is ready in just 15 minutes. Topped with Parmesan, it is sure to be a hit!

These air fryer jalapeño poppers are the perfect party appetiser – crispy, creamy, cheesy, and just the right amount of spicy.

Air Fryer Swiss Melt with Horseradish Sauce

Yields: 2 sandwiches | Prep Time: 10 minutes | Cook Time: 5 minutes

Ingredients

Horseradish Sauce

• 1/4 cup mayonnaise
• 1 tablespoon prepared horseradish (creamy, jarred)
• 1 teaspoon Dijon mustard
• 1 teaspoon Worcestershire sauce

Sandwiches

• 2 sesame hamburger buns, split
• 6 to 8 oz sliced roast beef
• 4 slices Swiss cheese

Directions

1. Make the sauce
   Stir together the mayonnaise, horseradish, Dijon mustard, and Worcestershire sauce until smooth.
2. Prepare the buns
   Spread horseradish sauce on the cut sides of both the top and bottom buns. (Image 1)
3. Assemble open-faced
   Place the bottom buns in the air fryer basket and top each with half of the roast beef.
   Place the top buns cut-side up in the basket and top each with 2 slices of Swiss cheese. (Image 2)
4. Air fry
   Air fry at 360°F (180°C) for 3 to 5 minutes, until the cheese is fully melted and the roast beef is warmed through. (Image 3)
5. Finish & Serve
   Remove from air fryer and close the sandwiches, press gently together, and serve immediately.