Try this California-style sandwich for your next backyard cookout. The ginger marinated tuna steaks served on sourdough bread with ginger-soy mayonnaise and mashed avocado are sure to win accolades.
1. Whisk 2 tablespoons of the soy sauce, sesame oil, lemon juice and 3 teaspoons of the ginger in bowl.Sandwiches:
2. Place tuna in a large resealable plastic bag; add marinade. Refrigerate 30 minutes, turning once. Mix mayonnaise, remaining 1 teaspoon each ginger and soy sauce in bowl. Refrigerate alongside tuna.
3. Prepare grill with medium-hot coals or heat gas grill to medium-high; coat rack with cooking spray.
4. Remove tuna from marinade; pat dry with paper towels. Grill 3 minutes per side for medium. Transfer to platter; tent with foil. Top bread with lettuce, then mashed avocado, tuna and flavored mayonnaise.