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Mushroom Swiss Patty Melt

Mushroom Swiss Patty Melt

A patty melt is the perfect mix of a cheeseburger and a grilled cheese, and this version takes it up a notch with savory mushrooms and Swiss cheese. Perfect for a comforting lunch or dinner!
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Course Dinner, lunch
Cuisine American, dinner-style
Servings 4

Equipment

  • Large skillet or griddle
  • Spatula
  • Mixing bowl
  • Measuring cups & spoons
  • Cutting board & knife

Ingredients
  

For the Patty:

  • 1 lb ground beef 80/20 blend for juiciness
  • 1 teaspoon Worcestershire sauce
  • 1 teaspoon garlic powder
  • ½ teaspoon onion powder
  • ½ teaspoon salt
  • ½ teaspoon black pepper
  • 1 tablespoon butter or oil for cooking patties

For the Mushrooms & Onions:

  • 1 tablespoon butter
  • 1 small onion thinly sliced
  • 1 cup mushrooms sliced (cremini or button work great)
  • ½ teaspoon salt
  • ½ teaspoon black pepper
  • ½ teaspoon garlic powder

For the Sandwich:

  • 8 slices rye bread or sourdough/white bread if preferred
  • 4 slices Swiss cheese
  • 4 tablespoons butter softened (for grilling bread)

Instructions
 

Step 1: Make the Patties

  • In a bowl, mix ground beef, Worcestershire sauce, garlic powder, onion powder, salt, and pepper.
  • Divide into 4 thin oval-shaped patties (slightly larger than your bread since they shrink when cooked).

Step 2: Cook the Mushrooms & Onions

  • Heat 1 tablespoon butter in a skillet over medium heat.
  • Add sliced onions and mushrooms, then sprinkle with salt, pepper, and garlic powder.
  • Sauté for 7-8 minutes, until soft and golden brown. Remove from skillet and set aside.

Step 3: Cook the Patties

  • In the same skillet, heat 1 tablespoon butter or oil over medium-high heat.
  • Cook patties for 3-4 minutes per side, until browned and cooked through.
  • Remove from skillet and set aside.

Step 4: Assemble the Patty Melts

  • Butter one side of each slice of bread.
  • On the unbuttered side of 4 slices, place one slice of Swiss cheese, a cooked beef patty, some mushrooms and onions, and another slice of cheese.
  • Top with the remaining bread slices (buttered side facing out).

Step 5: Grill the Sandwiches

  • Heat a clean skillet over medium heat.
  • Cook sandwiches for 3-4 minutes per side, pressing slightly with a spatula, until bread is golden brown and cheese is melted.

Step 6: Serve & Enjoy

  • Slice in half and serve hot with fries, chips, or a side salad.

Pro Tips for the Best Patty Melt:

  • ✔ Use rye bread for an authentic diner taste.
  • ✔ Caramelize onions slowly for extra flavor.
  • ✔ Press the sandwich gently while grilling to get the best melt.
  • ✔ Want it extra cheesy? Add more Swiss or mix with provolone.
  • ✔ Spice it up? Add a dash of hot sauce or spicy mustard inside.

Notes

  • Storage: Store leftovers in an airtight container for up to 2 days. Reheat on a skillet for best texture.
  • Make-Ahead: Cook patties and mushrooms ahead, then assemble fresh for quick sandwiches.
  • Gluten-Free Option: Use gluten-free bread.
Keyword diner classic, grilled sandwich, patty melt, Swiss mushroom melt
Tried this recipe?Let us know how it was!