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Meatloaf burger with mushroom relish on a spatula held over a Blackstone griddle.
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5 from 1 vote

Meatloaf Burger With Mushroom Relish

Quick and easy meatloaf burgers topped with a savory mushroom relish.
Prep Time15 minutes
Cook Time15 minutes
Total Time30 minutes
Course: Dinner
Cuisine: American
Keyword: burgers, meatloaf, mushrooms
Servings: 4 burgers

Ingredients

Mushroom Relish

  • 2 Tbsp butter
  • 2 Tbsp extra-virgin olive oil
  • ½ cup diced white onion
  • 1 garlic bulb, minced
  • 12 ounces mushrooms, cleaned and stemmed, sliced
  • ¼ cup balsamic vinegar
  • 2 sprigs fresh thyme
  • 1 sprigs fresh rosemary

Meatloaf Burgers

  • 4 slices of leftover meatloaf
  • ½ cup BBQ sauce
  • 4 cheese slices
  • 4 hamburger buns

Instructions

Mushroom relish

  • In a heavy-bottomed pot, melt the butter with the olive oil over medium heat.
  • Add the onion and garlic and cook for 1 minute to soften.
  • Add mushrooms and cook until mushrooms are softened and cooked through, stirring, about 3 or 4 minutes.
  • Pour in the balsamic vinegar and herbs, stir, and cook for 3-4 minutes.

Meatloaf Burgers

  • Heat griddle to medium-high heat.
  • Grill the meatloaf for 2-3 minutes per side or until heated through.
  • Brush the cut sides of the meatloaf with BBQ sauce.
  • Add a cheese slice on each meatloaf piece.
  • Toast the buns on the griddle until golden.
  • Place a slice of meatloaf on the bottom part of each bun. Top with mushroom relish and top of bun.
  • Serve immediately.