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Comforting Leftover Hamburger Patty Casserole Recipe with Cheese and Potatoes

leftover hamburger patty casserole - featured image

A quick and easy casserole that transforms leftover hamburger patties, potatoes, and sharp cheddar cheese into a warm, hearty, and cheesy comfort food perfect for busy weeknights.

Ingredients

Scale
  • 34 leftover hamburger patties, crumbled
  • 3 medium potatoes (Yukon Gold or Russet), peeled and thinly sliced
  • 1½ cups sharp cheddar cheese, shredded
  • 1 small yellow or white onion, finely chopped
  • 2 cloves garlic, minced
  • 3 tablespoons butter, melted
  • 1 cup milk or cream (whole milk or half and half)
  • 2 tablespoons flour
  • Salt and freshly ground black pepper, to taste
  • Fresh parsley, chopped (optional, for garnish)

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. Peel and thinly slice 3 medium potatoes into about 1/8-inch (3 mm) thick rounds.
  3. Melt 3 tablespoons of butter in a large skillet over medium heat. Add the finely chopped onion and cook for about 5 minutes until soft and translucent. Add the minced garlic and cook for another minute until fragrant.
  4. Crumble the leftover hamburger patties into the skillet with the onions and garlic, stirring gently to heat through and break up bigger chunks. Add a splash of beef broth or water if the patties are dry.
  5. In a medium bowl, whisk together 1 cup milk, 2 tablespoons flour, salt, and pepper until smooth. Pour this mixture over the meat and onions in the skillet, stirring constantly. Cook for about 2-3 minutes until the sauce thickens and coats the ingredients.
  6. Lightly grease a 9×13-inch (23×33 cm) oven-safe casserole dish. Arrange half the sliced potatoes in an even layer on the bottom. Spoon half the meat and sauce mixture over the potatoes, spreading evenly. Sprinkle about ¾ cup shredded cheddar cheese over the layer.
  7. Repeat with the remaining potatoes, meat mixture, and top with the last ¾ cup of cheese.
  8. Cover the dish loosely with foil and bake for 25 minutes. Remove the foil and bake for another 15 minutes or until the cheese is bubbly and golden brown and the potatoes are tender when pierced with a fork.
  9. Let the casserole sit for 5-10 minutes after taking it out of the oven to help the layers set and make serving easier.
  10. Optional: Sprinkle chopped fresh parsley before serving.

Notes

Use sharp cheddar cheese for best melt and flavor. To keep the casserole moist, cover with foil during the first part of baking and rest after baking. For gluten-free, substitute flour with cornstarch or gluten-free flour blend. You can prepare the casserole a day ahead and bake when ready. Leftovers keep well in the fridge for up to 3 days and reheat best covered.

Nutrition

Keywords: leftover hamburger patties, casserole, cheesy potatoes, comfort food, quick dinner, easy weeknight meal