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Delicious French Onion Beef Sloppy Joes served on a plate with toppings

French Onion Beef Sloppy Joes

A comforting sandwich combining the rich flavors of French onion soup and classic sloppy joes, featuring caramelized onions, savory beef, and melted Swiss cheese.
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Course Dinner, Main Course
Cuisine American
Servings 4 servings
Calories 450 kcal

Ingredients
  

Main Ingredients

  • 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
  • 4 pieces hamburger buns
  • 1 cup shredded Swiss cheese
  • optional Fresh parsley (for garnish)

Instructions
 

Preparation

  • Heat olive oil in a large skillet over medium heat until shimmering.
  • Add sliced onions and cook for 10-12 minutes until golden and caramelized.
  • Stir in minced garlic and cook for an additional 1-2 minutes until fragrant.
  • Add ground beef and cook until fully browned, breaking it apart with a spatula.
  • Drain excess fat, then stir in Worcestershire sauce, soy sauce, thyme, salt, and pepper.
  • Let simmer for 5 minutes to meld flavors.
  • Toast hamburger buns lightly until golden brown.
  • Scoop the beef mixture onto each bun's bottom half, top with Swiss cheese, and cover with the top bun.
  • Garnish with chopped parsley if desired before serving.

Notes

Serving suggestions include crispy fries or coleslaw. Leftovers can be refrigerated for up to three days or frozen for up to three months. Adjust toppings and seasonings to taste.
Keyword Comfort Food, Family Dinner, French Onion, sandwich, Sloppy Joes