Description
Hearty deli-style roast beef sandwiches with sharp cheddar, caramelized onions, and horseradish mayo on toasted artisan bread—perfect for lunch or casual dinners.
Ingredients
Scale
- 1 lb (450g) thinly sliced roast beef (high-quality deli cut)
- 8 slices sharp cheddar cheese
- 1 large onion, thinly sliced
- 2 tbsp butter (divided)
- 1 tbsp olive oil
- 4 crusty rolls (ciabatta, hoagie, or sourdough)
- 1/4 cup mayonnaise
- 2 tbsp prepared horseradish (adjust to taste)
- 1 tsp Dijon mustard
- 1 cup arugula or baby spinach
- Salt and pepper to taste
Instructions
- Caramelize onions: Melt 1 tbsp butter with olive oil over low heat. Add onions, cook 25-30 mins until golden, stirring occasionally. Season with salt.
- Make spread: Mix mayo, horseradish, and Dijon. Refrigerate until use.
- Toast bread: Split rolls, butter cut sides, and toast in skillet or oven until golden.
- Layer sandwiches: Spread horseradish mayo on both sides of each roll. Layer with roast beef, caramelized onions, and cheddar.
- Melt cheese: Place assembled sandwiches under broiler for 1-2 mins until cheese melts.
- Finish: Add arugula, close sandwiches, and slice diagonally. Serve warm.
Notes
- Pro tip: Ask deli to slice roast beef #2 thickness (not shaved).
- For au jus: Heat 1 cup beef broth with 1 tsp Worcestershire sauce for dipping.
- Vegetarian option: Substitute grilled portobello mushrooms for roast beef.
- Prep Time: 10 mins
- Cook Time: 30 mins
- Category: Lunch/Dinner
- Method: Stovetop/Broiling
- Cuisine: American
Nutrition
- Serving Size: 1 sandwich
- Calories: 620
- Sugar: 5g
- Sodium: 1420mg
- Fat: 36g
- Saturated Fat: 14g
- Unsaturated Fat: 18g
- Trans Fat: 0.5g
- Carbohydrates: 38g
- Fiber: 3g
- Protein: 38g
- Cholesterol: 115mg