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Patty Melt Pie Recipe: Best Easy Swiss Cheese & Onion Dinner

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This Patty Melt Pie combines all the classic flavors of a diner patty melt—savory ground beef, gooey Swiss cheese, and sweet caramelized onions—layered in a flaky pie crust for a comforting, shareable dinner. It’s quick to prepare, crowd-pleasing, and perfect for busy weeknights or cozy gatherings.

Ingredients

Scale
  • 1 lb ground beef (80/20 preferred)
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1/2 tsp garlic powder
  • 1 tbsp Worcestershire sauce
  • 2 large yellow onions, thinly sliced
  • 2 tbsp butter
  • 1 tbsp olive oil
  • Pinch of salt (for onions)
  • 2 tbsp beef broth (optional, for onions)
  • 8 oz Swiss cheese, sliced or shredded
  • 1 refrigerated pie crust (1 sheet, about 8 oz)
  • Sesame seeds (optional, for topping)
  • 1 large egg
  • 1 tbsp water

Instructions

  1. Preheat oven to 375°F (190°C). Let pie crust rest at room temperature for 10 minutes if refrigerated.
  2. In a large skillet, melt butter and olive oil over medium-low heat. Add sliced onions and a pinch of salt. Cook for 20-25 minutes, stirring occasionally, until golden brown and soft. Add beef broth if onions dry out.
  3. In a separate skillet (or push onions aside if pan is large), brown ground beef over medium-high heat. Season with salt, pepper, garlic powder, and Worcestershire sauce. Cook for 5-7 minutes until beef is browned and no longer pink. Drain excess fat and let cool slightly.
  4. Roll out pie crust and fit into a 9-inch pie dish. Press gently and trim edges if needed.
  5. Layer half the Swiss cheese on the bottom of the crust. Spoon beef mixture evenly over cheese. Layer remaining Swiss cheese over beef. Spread caramelized onions evenly on top. Sprinkle sesame seeds or paprika if desired.
  6. Whisk egg with water and brush over exposed crust edge.
  7. Place pie dish on a baking sheet. Bake in center of oven for 28-35 minutes, until crust is golden and cheese is bubbly. Check at 25 minutes if oven runs hot.
  8. Let pie cool for 10 minutes before slicing to set layers.
  9. Slice into wedges and serve warm. Broil for 1-2 minutes if crust is pale, watching closely.

Notes

Caramelize onions slowly for best flavor. Drain beef well to prevent soggy crust. Layer cheese above and below beef for a gooey center. Let pie cool before slicing for clean wedges. For gluten-free, use a GF pie crust. For vegetarian, substitute beef with lentils or plant-based meat. Leftovers keep well and taste even better the next day.

Nutrition

Keywords: patty melt pie, Swiss cheese, caramelized onions, ground beef, easy dinner, comfort food, diner recipe, pie, family meal, weeknight dinner