Nutrition Facts - Similar Hamburger with Mayonnaise or Salad Dressing and Tomatoes on Bun Start your food diary today! No hormones and no antibiotics ever. Nutrition information for Hamburger Bun. Sometimes the simplest solution is the best. Keto Hamburger Bun Calories, fat, protein, and carbohydrate values for for Hamburger Bun and other related foods. Wheat, soy, milk, eggs and tree nuts may be present in the bakeries. 100% all-natural Angus beef. Try our classic hamburger, with ¼-lb of fresh ground beef, topped however you want it, surrounded by a fresh-baked Rotella’s bakery bun. Our proprietary Shack blend is freshly ground and served on a non-GMO potato Track calories, carbs, fat, and 16 other key nutrients. Calories In Hamburger Bun, Low-Carb with Flax and Oat Fiber Calories: 243 , Fat: 19g , Carbs: 36g , Protein: 13g , Fiber: 35g Calories In The UNcrumble 90 sec. We follow all of the Good Manufacturing Practices established by the FDA for cleaning after an allergen is run on the line.