Combine The Tuna With The Mayonnaise In A Bowl, And Mix Until Well Combined. Mix Together The Spinach, Carrot, Apple, Mozzarella Cheese, And Blueberries In A Bowl, And Gently Fold In The Tuna Salad, Making Sure Not To Crush The Blueberries. Microwave The Flour Tortillas For About 10 Seconds, Until Slightly Warmed And Pliable. Scoop About 1 1/2 Cups Of The Spinach-Tuna Mixture Into The Center Of Each Tortilla, Fold Up The Bottom 2 Inches To Enclose The Filling, Wrap, And Serve.