Go Back
French Dip Sandwiches

Easy French Dip Sandwiches

Meryl Downing
French Dip Sandwiches are an easy weeknight meal with deli roast beef or grilled steak, caramelized onions, melty cheese, and au jus for dipping! Kid-friendly and a family favorite!
Prep Time 10 mins
Cook Time 35 mins
Total Time 45 mins
Course Dinner
Cuisine American
Servings 2 to 4


  • 1 T olive oil
  • 1 onion sliced
  • ¼ t kosher salt
  • 6 grinds fresh black pepper
  • ¾ lb deli roast beef, thinly sliced (OR a 1 pound sirloin steak)
  • 1 quart beef stock
  • 2 to 4 hoagie buns
  • swiss cheese sliced


  • To Caramelize Onions--set a saute pan over medium low heat, add olive oil and cook onions, seasoned with salt and pepper, slowly for 20 minutes or more, stirring occasionally until they turn caramel brown in color.
  • When caramelized, add stock, allow to simmer and reduce, about 10 minutes.
  • When stock is reduced a bit, lay sliced roast beef over the onions and stock and allow to warm through. Turn oven broiler on high.
  • STEAK OPTION--While the onions are caramelizing, you can alternatively cook a steak on an outdoor grill, allow it to rest on a cutting board before slicing and adding to the reduced stock. See Method 2 and 3 in text above.
  • Assemble sandwiches on a large sheet tray with tongs, fill hoagies with roast beef, onions, and top with cheese. Broil until cheese is melted and hoagies are toasted. Meanwhile turn up heat to medium to reduce the beef stock and onion mixture further, this will be your dipping sauce.
  • Cut sandwiches diagonally to allow for easy dipping! Serve everyone their own little cup of sauce.
Keyword French Dip, Sandwich Night