These French Onion Beef Sloppy Joes combine the deep, savory flavors of caramelized onions and juicy beef with melty cheese, all piled onto toasty buns. It’s a quick, comforting dinner that brings the cozy vibes of French onion soup to a fun, family-friendly sandwich.
For best flavor, caramelize onions slowly over medium-low heat. If the filling is too runny, simmer longer; if too thick, add a splash of broth. Make the filling ahead for deeper flavor and easy weeknight meals. Use gluten-free buns for a gluten-free version, and swap in ground turkey or plant-based meat for lighter or vegetarian options.
Keywords: French onion, sloppy joes, beef, cheesy, easy dinner, comfort food, caramelized onions, sandwich, family meal, weeknight dinner