Tuna Salad Sub, Tuna Salad

sub roll [unbleached, unbromated enriched wheat flour (malted barley flour, niacin, reduced iron, thiamine mononitrate, riboflavin and folic acid, water, yeast, malted barley flour, sugar, contains 2% or less of the following: salt, soybean oil, wheat gluten, calcium propionate, ascorbic acid, tuna [yellowfin tuna, water, vegetable broth, salt, mayonnaise [soybean oil, vinegar, egg yolk, high fructose corn syrup, contains less than 2% of salt, water, mustard seed, calcium disodium edta, celery, spring mix [baby leaf lettuces may contain some of the following: arugula, green chard, green leaf, green oak, green romaine, mizuna, red chard, red leaf, red oak, red romaine, baby spinach, tango, lolla rosa, red mustard, tatso, salt, xanthan gum, potassium sorbate, black pepper, sodium benzoate