Ingredient Meat & Poultry Pork Bacon Loaded Portobello Mushrooms 4.8 (4) 3 Reviews Think of these loaded portobello mushrooms as a low-carb version of a stuffed potato--Cheddar cheese, sour cream, scallions and bacon melted into portobello mushroom caps for a delicious and satisfying dinner. Serve them with a green salad to round out the meal. By Carolyn Casner Carolyn Casner See More Carolyn Casner is a longtime recipe tester and contributor for EatingWell. Over the years, she has tested and developed hundreds of recipes for the magazine and website. EatingWell's Editorial Guidelines Updated on September 30, 2025 Reviewed by Dietitian Jessica Ball, M.S., RD Reviewed by Dietitian Jessica Ball, M.S., RD Jessica Ball, M.S., RD, is the senior nutrition editor for EatingWell. She is a registered dietitian with a master's in food, nutrition and sustainability. In addition to EatingWell, her work has appeared in Food & Wine, Real Simple, Parents, Better Homes and Gardens and MyRecipes. EatingWell's Editorial Guidelines Save Rate PRINT Share Prep Time: 15 mins Additional Time: 10 mins Total Time: 25 mins Servings: 4 Yield: 4 mushrooms Nutrition Profile: Low-Carb Nut-Free Soy-Free Egg-Free Gluten-Free Jump to Nutrition Facts The dish comes together quickly, perfect for a busy weeknight dinner.Portobello mushrooms are low-calorie and packed with essential nutrients and fiber.Cheddar cheese, sour cream and bacon create a rich, flavorful filling. Cook Mode (Keep screen awake) Ingredients 1/2x 1x 2x Oops! Something went wrong. Our team is working on it. This recipe was developed and tested at its original yield and has not been tested at other yields. Note that only the ingredient list is scaled, so you may need to make adjustments to ingredient amounts, cooking times and equipment sizes in the recipe steps. Scaling could also impact the nutrition analysis. Original recipe (1X) yields 4 servings 2 tablespoons extra-virgin olive oil ½ teaspoon garlic powder ¼ teaspoon salt ¼ teaspoon ground pepper 4 portobello mushrooms (about 14 ounces), stems and gills removed (see Tip) ¾ cup shredded extra-sharp Cheddar cheese ⅓ cup sour cream 2 scallions, thinly sliced, divided 4 slices cooked bacon, chopped Directions Preheat oven to 400 degrees F. Combine oil, garlic powder, salt and pepper in a small bowl. Using a silicone brush, coat mushrooms all over with the oil mixture. Place the mushrooms on a large rimmed baking sheet and bake until mostly soft, about 10 minutes. Meanwhile, stir cheese, sour cream and all but 1 tablespoon scallions in a medium bowl. Once the mushrooms have softened, remove from the oven; fill with the cheese mixture and sprinkle with bacon. Bake until the cheese is melted, about 5 minutes more. Sprinkle with the reserved scallions. Tips Tip: To prepare portobello mushroom caps, gently twist off the stems of whole portobellos. Using a spoon, scrape off the brown gills from the underside of the mushroom caps. If you prefer, purchase portobello mushroom caps, rather than whole mushrooms. Originally appeared: EatingWell.com, January 2020 Save Rate Print Nutrition Facts (per serving) 249 Calories 21g Fat 6g Carbs 10g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 4 Serving Size 1 mushroom each Calories 249 % Daily Value * Total Carbohydrate 6g 2% Dietary Fiber 2g 5% Total Sugars 3g Protein 10g 21% Total Fat 21g 27% Saturated Fat 8g 39% Cholesterol 39mg 13% Vitamin A 413IU 8% Vitamin C 2mg 2% Folate 39mcg 10% Sodium 436mg 19% Calcium 177mg 14% Iron 1mg 3% Magnesium 23mg 5% Potassium 459mg 10% Nutrition information is calculated by a registered dietitian using an ingredient database but should be considered an estimate. * Daily Values (DVs) are the recommended amounts of nutrients to consume each day. Percent Daily Value (%DV) found on nutrition labels tells you how much a serving of a particular food or recipe contributes to each of those total recommended amounts. Per the Food and Drug Administration (FDA), the daily value is based on a standard 2,000 calorie diet. Depending on your calorie needs or if you have a health condition, you may need more or less of particular nutrients. (For example, it’s recommended that people following a heart-healthy diet eat less sodium on a daily basis compared to those following a standard diet.) (-) Information is not currently available for this nutrient. If you are following a special diet for medical reasons, be sure to consult with your primary care provider or a registered dietitian to better understand your personal nutrition needs.