Is SANDWICH BUN, HAM, SWISH & CARAMELIZED ONION vegan?

everything bun: (enriched wheat flour [wheat flour, malted barley flour, niacin, iron, thiamine mononitrate, riboflavin, folic acid], water, sugar, palm oil, yeast, dough conditioner [wheat flour, diacetyl tartaric acid esters of mono-diglycerides [datem], contains 2% or less of: soybean oil, l. cysteine, enzyme, ascorbic acid, azodicarbonamide [ada]], salt, dough extender [wheat flour, monoglycerides, guar gum, corn syrup solids, contains 2% or less of: enzyme, soybean oil], calcium propionate, dry malt, dough conditioner [corn flour, turmeric, mono-diglycerides, contains 2% or less of: paprika, natural and artificial flavors] shine agent [casein [milk], disodium phosphate, soya lecithin, contains 2% or less of: carrageenan, turmeric, paprika], topping [onion, water, soybean oil, salt poppy seed, granulated garlic], sesame seed), private selection wildflower honey ham (cured with: water, honey sugar, salt, sodium phosphates, sodium erythorbate, and sodium nitrite), swiss cheese (pasteurized milk, cheese culture, salt, enzymes), caramelized onions (onion, sweet, raw, butter, unsalted, sugar, white granulated), bacon (fully cooked bacon cured with water, salt, sugar, sodium phosphates, sodium erythorbate, sodium nitrite).

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