Sirloin Steak Sandwiches with Horseradish Mayo | Family Foods

Ingredients

• 1/4 cup (60 mL) mayonnaise
• 2 tbsp (30 mL) prepared horseradish
• 1 tbsp (15 mL) Dijon mustard
• 16 oz (500 g) top sirloin steak, 1-in (2.5 cm) thick
• 1 tbsp (15 mL) finely chopped fresh rosemary
• 1/2 tsp (2 mL) each salt and pepper
• 1 baguette, halved lengthwise and cut crosswise into 4, toasted
• 8 tomato slices
• 2 cups (500 mL) arugula