Show full nutrition information. Calories In Collard Mushroom Gravy with 1 slice Martin's Bread Per serving Calories: 226, Fat: 6g, Carbs: 29g, Protein: 16g, Fiber: 6g. Calories In Hummus on one slice of bread Calories: 72, Fat: 1g, Carbs: 16g, Protein: 4g, Fiber: 1g.