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Mushroom Melt Skinny
Mushroom Melt Skinny at Potbelly has 354 calories, 20g protein, 39g carbs and 15g fat — sourced from FastFoodNutrition.org (Potbelly), not AI guesses. Thin-cut multigrain, sliced mushrooms, cheddar, provolone, Swiss, lettuce, tomato.
At Potbelly, the Mushroom Melt Skinny is light on calories. That works out to 5.6g of protein per 100 calories — 20g below the 40g Potbelly average. Its macros land at roughly 23% of calories from protein, 44% from carbs and 38% 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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