Cast-Iron Patty Melts

Featured in: Weekend Comfort Recipes

This dish features juicy beef patties seasoned and cooked to a perfect brown in a cast-iron skillet. Sweet, deeply caramelized onions add a rich, savory note, layered between slices of crispy rye bread with melted Swiss cheese. Butter is spread on the bread for a golden crust during grilling. This comfort classic combines textures and hearty flavors, served hot for satisfying meals any day.

Updated on Mon, 24 Nov 2025 16:44:00 GMT
Crispy, golden-brown cast-iron patty melts, oozing melted Swiss cheese and caramelized onions. Save to Pinterest
Crispy, golden-brown cast-iron patty melts, oozing melted Swiss cheese and caramelized onions. | saffronmoss.com

A classic American comfort dish featuring juicy beef patties, caramelized onions, and melted cheese sandwiched between crispy rye bread, all cooked to perfection in a cast-iron skillet.

A classic American comfort dish featuring juicy beef patties, caramelized onions, and melted cheese sandwiched between crispy rye bread, all cooked to perfection in a cast-iron skillet.

Ingredients

  • Beef Patties: 1 lb (450 g) ground beef (80/20 blend recommended), 1/2 tsp kosher salt, 1/2 tsp freshly ground black pepper, 1/2 tsp Worcestershire sauce
  • Onions: 2 large yellow onions, thinly sliced, 2 tbsp unsalted butter
  • Sandwich Assembly: 8 slices rye bread, 8 slices Swiss cheese, 4 tbsp unsalted butter softened

Instructions

Make the Onions:
In a large cast-iron skillet over medium heat, melt 2 tbsp butter. Add sliced onions and cook, stirring occasionally, until deeply caramelized and golden brown, about 15 18 minutes. Transfer onions to a bowl and wipe skillet clean.
Prepare the Patties:
In a medium bowl, gently combine ground beef, salt, pepper, and Worcestershire sauce. Form into 4 oval-shaped patties, roughly the size and shape of your bread slices.
Cook the Patties:
Heat the skillet over medium-high heat. Add patties and cook for 3 4 minutes per side, until nicely browned and just cooked through. Transfer to a plate.
Assemble the Sandwiches:
Spread softened butter on one side of each bread slice. On the unbuttered side of 4 slices, layer 1 slice Swiss cheese, a beef patty, a generous portion of caramelized onions, another slice of Swiss cheese, then top with remaining bread, buttered side out.
Grill the Patty Melts:
Place assembled sandwiches in the skillet over medium heat (work in batches if needed). Cook 3 4 minutes per side, pressing gently, until bread is golden brown and cheese is melted.
Serve:
Let rest briefly, then slice in half and serve hot.
A close-up of a perfectly grilled cast-iron patty melt, ready to enjoy with a side. Save to Pinterest
A close-up of a perfectly grilled cast-iron patty melt, ready to enjoy with a side. | saffronmoss.com

This recipe always brings back memories of cozy dinners shared with family on chilly nights.

Notes

For extra flavor, add a smear of Dijon mustard or Thousand Island dressing before assembling. Substitute rye bread with sourdough or whole wheat if preferred. Add sautéed mushrooms for a twist. Pairs well with classic dill pickles or a side of crispy fries.

Required Tools

Cast-iron skillet, spatula, mixing bowl, knife and cutting board

Nutritional Information

Calories: 680, Total Fat: 39 g, Carbohydrates: 40 g, Protein: 38 g per serving

Mouthwatering, stacked cast-iron patty melts with layers of beef and melted cheese. Save to Pinterest
Mouthwatering, stacked cast-iron patty melts with layers of beef and melted cheese. | saffronmoss.com

Enjoy these indulgent patties melts fresh from the skillet for the best flavor and texture.

Recipe FAQs

What type of beef is best for this dish?

An 80/20 blend of ground beef provides the right balance of flavor and juiciness for patties.

How do you achieve perfectly caramelized onions?

Cook thinly sliced onions slowly in butter over medium heat, stirring occasionally until deep golden-brown, about 15–18 minutes.

Can I substitute the rye bread?

Sourdough or whole wheat bread are great alternatives that complement the flavors well.

What is the best way to cook the patties evenly?

Cook the patties over medium-high heat for 3–4 minutes per side until nicely browned and just cooked through.

How do I ensure the sandwich gets crispy and cheese melts properly?

Grill the assembled sandwich in buttered cast-iron skillet over medium heat, pressing gently and flipping until golden brown and cheese melts.

Cast-Iron Patty Melts

Juicy beef patties with caramelized onions and melted cheese on crispy rye bread in a skillet.

Prep Steps Duration
20 min
Time Needed to Cook
25 min
Overall Time Required
45 min
Created by Leah Winslow


Skill Level Easy

Cuisine Type American

Servings Made 4 Number of Portions

Diet Preferences None specified

List of Ingredients

Beef Patties

01 1 lb ground beef (80/20 blend)
02 1/2 tsp kosher salt
03 1/2 tsp freshly ground black pepper
04 1/2 tsp Worcestershire sauce

Onions

01 2 large yellow onions, thinly sliced
02 2 tbsp unsalted butter

Sandwich Assembly

01 8 slices rye bread
02 8 slices Swiss cheese
03 4 tbsp unsalted butter, softened

How to Make It

Step 01

Caramelize Onions: Melt 2 tablespoons butter in a large cast-iron skillet over medium heat. Add sliced onions and cook, stirring occasionally, until deeply caramelized and golden brown, about 15 to 18 minutes. Remove onions to a bowl and wipe skillet clean.

Step 02

Form Patties: Combine ground beef, kosher salt, black pepper, and Worcestershire sauce in a medium bowl. Gently mix and shape into 4 oval patties roughly the size of the bread slices.

Step 03

Cook Patties: Heat the skillet over medium-high heat. Add patties and cook for 3 to 4 minutes per side until browned and cooked through. Transfer cooked patties to a plate.

Step 04

Assemble Sandwiches: Spread softened butter on one side of each bread slice. On the unbuttered side of 4 slices, layer one slice Swiss cheese, a beef patty, a generous amount of caramelized onions, another slice Swiss cheese, then top with the remaining bread slices, buttered side out.

Step 05

Grill Sandwiches: Place sandwiches in the skillet over medium heat (work in batches if necessary). Cook for 3 to 4 minutes per side, pressing gently, until bread is golden brown and cheese melts.

Step 06

Serve: Allow sandwiches to rest briefly, then slice in half and serve hot.

Equipment List

  • Cast-iron skillet
  • Spatula
  • Mixing bowl
  • Knife and cutting board

Allergy Details

Double-check each ingredient for allergens. Ask your doctor if you're unsure.
  • Contains wheat (bread) and milk (cheese, butter)
  • May contain soy (check Worcestershire sauce label)

Nutrition Info (per serving)

Only use this info for reference—it won't replace expert advice.
  • Calorie Content: 680
  • Amount of Fat: 39 g
  • Carbohydrate: 40 g
  • Protein Amount: 38 g