Lay's Mexican Tomato chips feature real potatoes fried in vegetable oil, coated with a seasoning blend of sugar, salt, tomato powder, onion, garlic, and flavor enhancers like MSG, with hints of chicken, chili, paprika, and spices, creating a tangy, savory, and slightly spicy profile, though specific ingredients vary slightly by region (e.g., China, India). Common ingredients include potato, oil, sugar, salt, flavorings, tomato/onion/garlic powder, yeast extract, and food additives like E330 (citric acid) and E627/E631 (flavor enhancers).