Grilled Tuna Toasts

1 1/2 lb tuna fillets

1/2 cup fresh lemon juice, divided

2 tbsp olive oil

1/2 tsp kosher salt

1/2 tsp freshly ground pepper

1/2 cup mayonnaise

1 cup chopped cucumber

2 tbsp chopped green olives

1 tbsp chopped fresh dill

1 (12oz) French bread baguette, thinly sliced and toasted

1/3 cup shredded Swiss cheese

Brush tuna with 1/4 cup lemon juice and olive oil; season with

salt and pepper. Cover and refrigerate 1 hours. Coat grill rack with

nonstick cooking spray. Preheat grill to medium high heat. Grill

tuna, covered with grill lid, 6-8 minutes on each side or until fish flakes

when tested with a fork. Let cool; chop tuna.

Preheat broiler. Combine tuna, mayonnaise, cucumber, olives, dill, and

remaining 1/4 cup lemon juice in a large bowl and spoon over toasted bread

slices. Top with cheese, if desired. Broil bread slices 1-2 minutes or until

bread is brown and cheese is melted. Serves 4