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French Onion Beef Sloppy Joes for Easy Sunday Football Dinner Ideas

A skillet of French Onion Beef Sloppy Joes styled for Sunday Football Dinner Ideas, with melted cheese and toasted buns.

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These French Onion Beef Sloppy Joes are a savory upgrade on the classic sandwich, made with caramelized onions, seasoned ground beef, melted Swiss cheese, and toasted buns. They are rich, cozy, and perfect for an easy family dinner or game day meal.

Ingredients

Scale
  • 1 pound ground beef, 85% lean
  • 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 and pepper, to taste
  • 4 hamburger buns
  • 1 cup shredded Swiss cheese
  • Fresh parsley, chopped, for garnish

Instructions

  1. Start the onions.
    Set a large skillet over medium heat and pour in the olive oil. Let it warm for a moment, then add the sliced onion. Stir the onions often and cook them slowly for about 10 to 12 minutes, or until they soften and turn a deep golden color.
  2. Add the garlic.
    Stir the minced garlic into the skillet with the onions. Cook for 1 to 2 minutes, just until the garlic becomes fragrant. Keep it moving so it does not burn.
  3. Cook the beef.
    Add the ground beef to the pan with the onions and garlic. Use a spatula to break the meat apart as it cooks. Continue cooking until the beef is browned all the way through and no pink remains.
  4. Drain excess fat.
    If the skillet has a lot of grease, carefully remove the extra fat so the filling stays rich without becoming heavy.
  5. Season the mixture.
    Stir in the Worcestershire sauce, soy sauce, dried thyme, salt, and pepper. Mix thoroughly so the flavor is distributed through the beef and onions.
  6. Simmer briefly.
    Lower the heat and let the mixture cook for about 5 minutes. This gives the flavors time to blend and helps the filling take on that signature French onion-inspired taste.
  7. Toast the buns.
    While the filling simmers, toast the hamburger buns until they are lightly golden. This adds texture and keeps the sandwiches from getting soggy once assembled.
  8. Build the sandwiches.
    Spoon the beef mixture onto the bottom halves of the toasted buns. Top each one with a generous mound of shredded Swiss cheese.
  9. Finish and serve.
    Place the top buns over the cheese, then sprinkle with chopped parsley if desired. Serve the French Onion Beef Sloppy Joes while they are hot and melty.

Notes

These French Onion Beef Sloppy Joes are easy to customize with mushrooms, peppers, extra cheese, or a little heat from spices. They also reheat well, so they work nicely for meal prep or next-day leftovers.

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