Grilled Chicken Sandwiches with Basil Mayonnaise

Ingredients

• 1 large lemon
• 1/3 cup (75 mL) reduced-fat mayonnaise
• 2 tbsp (30 mL) chopped fresh basil, OR 2 tsp (10 mL) dried
• 4 boneless, skinless chicken breast halves (4 oz / 125 g each)
• 1 tbsp (15 mL) lemon pepper seasoning
• 4 sandwich rolls (2 oz / 62 g each), split
• 1 small bunch arugula or watercress, trimmed
• 2 medium tomatoes, sliced