Is REUBEN PUFF vegan?

tortilla: flour (wheat flour, barley flour, water palm oil, baking powder, salt. filling thousand island dressing (ketchup (tomato concentrate from red ripe tomatoes, distilled vinegar, high fructose corn syrup, corn syrup, salt, spice, onion powder, natural flavoring), yogurt (cultured low fat milk, food starch-modified, gelatin, potassium sorbate), mayonnaise (water, soybean oil, modified food starch (corn, potato), eggs, sugar, salt, vinegar, lemon juice, sorbic acid and calcium disodium edta, natural flavor, vitamin e), relish (cucumbers, water, vinegar, high fructose corn syrup, salt, spices, xanthan gum, red peppers, alum, turmeric, 1/10 of 1% benzoate of soda)), cooked corned beef brisket (beef cured with water, salt, sugar, sodium nitrite, sodium phosphate, garlic, flavorings, sodium erythorbate), sour cream (cultured sour cream [nonfat milk, cream, grade a whey, corn starch-modified, sodium phosphate, guar gum, carrageenan, sodium citrate, locust bean gum) potassium sorbate) swiss cheese pasteurized part-skim milk, cheese culture, salt, enzymes), sauerkraut (cabbage, water, salt, sodium benzoate, and sodium bisulfite [preservatives]), dijon mustard (water, mustard seed, vinegar, salt, white wine, citric acid, turmeric, tartaric, tartaric acid, spices).

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