Pesto Focaccia Sandwiches without tomatoes

1 loaf French bread, sliced 4 tablespoons jarred pesto sauce 1 cooked chicken breast, shredded 4 ounces fresh mozzarella cheese , sliced 1 Spread pesto onto[...]

1 (6 ounce) can albacore tuna , drained 2 tablespoons pesto sauce 2 tablespoons red onions , minced 3 tablespoons celery , minced 3 tablespoons black olives ,[...]