Healthy Recipes Ingredient Mushroom Portobello Mushroom Tomato, Feta & Spinach-Stuffed Portobello Mushrooms 4.5 (10) 7 Reviews A mixture of tomatoes, spinach, feta, olives and fresh oregano gives portobellos a Mediterranean vibe in this healthy stuffed mushroom recipe. Serve these along with chicken, fish or tofu as a super-satisfying side dish, or add a hearty salad and make them the centerpiece of a vegetarian dinner. 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 October 9, 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 stuffed mushrooms Nutrition Profile: Low-Carb Nut-Free Soy-Free Vegetarian Egg-Free Gluten-Free Low-Calorie Jump to Nutrition Facts Portobello mushrooms provide a hearty base for the Mediterranean-inspired filling.Spinach in the filling offers a boost of fiber, vitamins and minerals.The fresh oregano adds a flavorful punch to the dish. 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 3 tablespoons extra-virgin olive oil, divided 1 clove garlic, minced ½ teaspoon ground pepper, divided ¼ teaspoon salt 4 medium portobello mushrooms (about 14 ounces), wiped clean, stems and gills removed 1 cup chopped spinach ½ cup quartered cherry tomatoes ⅓ cup crumbled feta cheese 2 tablespoons pitted and sliced Kalamata olives 1 tablespoon chopped fresh oregano Directions Preheat oven to 400 degrees F. Combine 2 tablespoons oil, garlic, 1/4 teaspoon pepper and salt in a small bowl. Using a silicone brush, coat mushrooms all over with the oil mixture. Place on a large rimmed baking sheet and bake until the mushrooms are mostly soft, 8 to 10 minutes. Meanwhile, combine spinach, tomatoes, feta, olives, oregano and the remaining 1 tablespoon oil in a medium bowl. Once the mushrooms have softened, remove from the oven and fill with the spinach mixture. Bake until the tomatoes have wilted, about 10 minutes. Originally appeared: EatingWell.com, July 2019 Save Rate Print Nutrition Facts (per serving) 151 Calories 9g Fat 7g Carbs 5g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 4 Serving Size 1 stuffed mushroom Calories 151 % Daily Value * Total Carbohydrate 7g 2% Dietary Fiber 2g 6% Total Sugars 4g Protein 5g 9% Total Fat 9g 11% Saturated Fat 3g 13% Cholesterol 11mg 4% Vitamin A 937IU 19% Vitamin C 6mg 6% Folate 49mcg 12% Sodium 390mg 17% Calcium 83mg 6% Iron 1mg 4% Magnesium 23mg 5% Potassium 467mg 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.