At Potbelly, the Roast Beef Original is a solid high-protein order. That works out to 5.6g of protein per 100 calories — 5g below the 40g Potbelly average. Its macros land at roughly 23% of calories from protein, 38% from carbs and 41% from fat. Contains dairy, gluten.
Source: FastFoodNutrition.org (Potbelly) ↗, last verified Jul 2, 2026. Menus change periodically; values may vary by location. How we verify →
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Roast Beef Original — common questions
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