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Easy French Onion Beef Sloppy Joes Recipe

This recipe takes the classic sloppy joe and infuses it with the rich, savory flavors of French onion soup. It's a quick, easy, and incredibly satisfying comfort food remix perfect for a weeknight meal or casual gathering.
Prep Time 10 minutes
Cook Time 20 minutes
Servings 4 sandwiches

Equipment

  • Large skillet
  • Baking sheet

Ingredients
  

Main Ingredients

  • 1 pound ground beef 80/20 recommended
  • 1 large onion thinly sliced
  • 2 cloves garlic minced
  • 1 tablespoon olive oil
  • 1 teaspoon Worcestershire sauce
  • 1 teaspoon soy sauce
  • 1 teaspoon dried thyme
  • Salt to taste
  • Pepper to taste
  • 4 hamburger buns
  • 1 cup shredded Swiss cheese Gruyère also works well
  • Fresh parsley chopped, for garnish

Instructions
 

  • Grab a large skillet and heat the olive oil over medium heat.
  • Add the thinly sliced onions to the pan. Cook low and slow for about 10-12 minutes, stirring occasionally, until beautifully caramelized and golden brown. Toss in the minced garlic and cook for just another 1-2 minutes until aromatic.
  • Push the onions and garlic to one side of the pan and add the ground beef. Break it up as it cooks and brown completely, about 5-7 minutes. Drain off any excess fat.
  • Stir the cooked beef and onions together. Add the Worcestershire sauce, soy sauce, dried thyme, salt, and pepper. Stir to combine and simmer gently for about 5 minutes to meld flavors.
  • While simmering, preheat your broiler. Place hamburger buns open-faced on a baking sheet. Lightly toast them under the broiler until just golden brown (watch closely).
  • Spoon the beef mixture onto the bottom half of each bun. Sprinkle a generous amount of shredded Swiss cheese over the top of the meat.
  • Pop the baking sheet back under the broiler for just 1-2 minutes until the cheese is melted and bubbly and slightly golden.
  • Carefully remove from the oven. Garnish with fresh chopped parsley. Place the top half of the bun on top (optional) and serve immediately.

Notes

Don't rush the onion caramelization; it's key to the flavor. Drain excess fat from the beef. Watch the broiler closely to prevent burning. The meat mixture can be made ahead and stored in the fridge for 3-4 days or frozen for up to 3 months; reheat before assembling on fresh buns. For a deeper flavor, add a splash of dry red wine or beef broth when adding sauces in step 4 and simmer down.