Tuna salad on a croissant

tuna (tuna, water, salt), croissant (enriched flour [wheat flour, niacin, reduced iron, thiamine mononitrate, riboflavin, folic acid], water, unsalted butter, milk with vitamin d added, sugar, yeast, salt, contains 2% or less of: dough conditioner [wheat flour, salt, nonfat dry milk, datem, enzyme blend {sodium chloride, calcium sulfate and calcium silicate (anti-caking), wheat starch, enzyme preparation, sunflower oil}, soybean oil, soy lecithin, dextrose, ascorbic acid]), tuna salad base (lite mayonnaise [water, soybean oil, vinegar, corn starch-modified, egg yolks, sugar, salt, cultured nonfat milk, lactic acid, mustard flour, lemon juice concentrate, xanthan gum, natural flavors, beta-apo-8'-carotenal {color}, calcium disodium edta {preservative}], mayonnaise [soybean oil, egg yolk, water, distilled vinegar, salt, sugar, lemon juice concentrate, natural flavor, calcium disodium edta {preservative}], corn cider vinegar, salt, pepper), green leaf lettuce, celery, red onion.