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Diner-Style Patty Melt

This classic diner-style patty melt is the ultimate comfort food for those seeking a substantial, high-protein meal. Combining the best elements of a cheeseburger and a toasted sandwich, it features seasoned minced beef patties nestled between slices of earthy rye bread. The addition of charred, softened onions and a generous layer of melted cheese creates a rich, savoury profile that is hard to resist.

Perfect for a quick midweek dinner or a relaxed weekend lunch, this recipe uses mayonnaise on the outside of the bread to achieve an even, golden-brown crust. Whether you choose traditional beef or a plant-based alternative, these melts are best served hot from the frying pan with a side of crunchy slaw or a few pickles for a truly authentic experience.

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Ingredients for Diner-Style Patty Melt

  • 450g beef mince chuck (20% fat), or 4 vegetarian patties such as Lightlife Plant-Based Burgers

  • 1 teaspoon kosher salt

  • 1/4 teaspoons freshly ground black pepper

  • 8 slices rye bread

  • 2 tablespoons vegetable oil, divided

  • 1 large onion, sliced into 1/4" rounds

  • 8 thin slices cheddar, American, or Swiss cheese

  • 40ml mayonnaise, divided

Season beef with salt and pepper; divide into 4 patties. Form each patty into a thin oval that is slightly larger than a slice of bread you’re using.

Heat 1 tablespoon oil in a large skillet or griddle, preferably cast iron, over medium-high. Cook onion slices in a single layer, being careful not to let rings separate, until softened and charred, about 4 minutes per side. Transfer to a plate and divide into individual rings.

Add remaining 1 tablespoon oil to skillet. Working in batches if needed, cook patties, pressing flat with a spatula, until browned but still pink in the centre, about 1 1/2 minutes per side. Transfer to a plate.

Wipe out skillet and reduce heat to medium-low. Top each slice of bread with 1 cheese slice, 1 patty, one-quarter of the onions, another slice of cheese, then a second slice of bread. Spread tops of each sandwich with 1 teaspoon mayonnaise. Working in batches if needed, cook sandwiches, mayo side down, spreading the top of each sandwich with 1 teaspoon mayonnaise, until golden brown, about 3 minutes. Flip and continue to cook until bread is golden brown and cheese is melted, about 3 minutes.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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