Ingredients

• 2 3/4" tuna steaks
• Lime
• 1 tablespoon minced ginger
• 1 cup mayonnaise
• 1 tablespoon lime juice
• 3 tablespoon horseradish
• Cayenne to taste
• Watercress
• 4 slices buttery bread, i.e. Challah

Instructions

1. Rub steaks with lime juice and ginger. Heat grill, broiler or cast iron grill pan. Grill fish for 3 minutes per side for medium rare steak. Grill bread to toast. In a small bowl mix together the mayonnaise, lime juice, horseradish and cayenne. Spread mayonnaise mixture on grilled bread and top with tuna steak, water cress and second slice of bread.