Southeast Dairy Association - roast beef and onion grilled cheese

Roast Beef and French Onion Grilled Cheese

Coating the outside of the bread with Parmesan cheese and then grilling creates an amazing crispy crust that is complimented by the creamy Fontina cheese. The horseradish sauce gives it just the perfect amount of kick.
Prep Time: 15 minutes
Cook Time: 20 minutes
Total Time: 35 minutes
Servings: 1


  • 2 slices thick sourdough bread
  • 2 ounces shaved roast beef
  • 1 ounce sliced or grated Fontina cheese
  • 12 medium sweet onion, thinly sliced or chopped
  • 1 tablespoon grated Parmesan cheese
  • 12 tablespoon prepared horseradish sauce
  • 2 tablespoons butter, divided


  1. In a small pan, heat 1 tablespoon of butter. Sauté onions 8-10 minutes or until tender and slightly caramelized. Set aside.
  2. Heat a nonstick or cast-iron pan over medium heat. Spread each slice of bread with horseradish sauce. Place cheese on bread, followed by onions, roast beef and remaining slice of bread. Spread top of bread with softened butter and half of the shredded Parmesan. Place buttered side down in heated pan. While sandwich is cooking, spread remaining softened butter and Parmesan cheese on top of bread. Cook approximately 3-4 minutes or until lightly browned. If necessary, turn heat down so the bread doesn’t burn. Flip sandwich over and cook another 3-4 minutes or until lightly browned.


Click here for an instructional cooking video.

Related Recipes