Rub tuna with Cajun seasoning and set aside. In small bowl mix cheese and basil. Place tablespoons of the cheese mixture on a baking sheet lined with a silicon baking mat or wax paper sprayed with nonstick spray. Bake in a 350-degree oven for 6 minutes or until cheese is melted and golden. Set aside to cool. Heat oil in a medium pan and cook tuna 2 min per side for medium rare. Thinly slice tuna place it on top of the Parmesan crisps along with a dollop of apricot jam.