Roast Beef Sandwich Recipe With Cheddar and Mayo — Eat This Not That

Ingredients

• 2 Tbsp olive oil mayonnaise
• 2 Tbsp Greek yogurt
• 2 Tbsp prepared horseradish
• 1 Tbsp Dijon mustard
• 1 clove garlic
• finely minced
• 2 cups arugula
• 8 slices multi grain bread
• lightly toasted
• 1 large tomato
• sliced
• 1⁄2 red onion
• very thinly sliced
• 1 lb leftover garlic-rosemary roast beef
• thinly sliced
• or high-quality store-bought roast beef
• 4 slices sharp Cheddar