Spinach Stuffed Portobello Mushrooms


This portobello stuffed mushroom recipe mixes together spinach, pepperoni, and cheese for a delicious, easy appetizer.

mid angle looking at a plate of two spinach stuffed portobello mushrooms
Prep Time:
15 mins
Cook Time:
25 mins
Total Time:
40 mins
4 stuffed mushrooms


  • 4 large portobello mushroom caps, stems and gills removed

  • 1 tablespoon reduced-fat Italian salad dressing

  • 1 egg

  • 1 clove garlic, minced

  • salt and ground black pepper to taste

  • 1 (10 ounce) bag fresh spinach, chopped

  • ¼ cup chopped pepperoni

  • ¼ cup grated Parmesan cheese

  • ¼ cup shredded mozzarella cheese, divided

  • ¼ cup seasoned bread crumbs, divided


  1. Preheat the oven to 350 degrees F (175 degrees C).

  2. Brush both sides of portobello mushrooms with Italian dressing. Arrange mushroom on a baking sheet, gill-sides up.

    Side of mushrooms brushed with Italian dressing and placed gill-side up.

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  3. Bake in the preheated oven until tender, about 12 minutes. Drain any juice that has accumulated in mushrooms.

    Mushrooms are tender after baking in the oven.

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  4. Beat egg, garlic, salt, and black pepper together in a large bowl.

    Egg, garlic, salt and pepper whisked together in a bowl.

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  5. Stir spinach, pepperoni, Parmesan cheese, 3 tablespoons mozzarella cheese, and 3 tablespoons bread crumbs into eggs until evenly mixed.

    Rest of ingredients mixed together with the egg mixture, until well combined.

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  6. Divide spinach mixture over mushroom caps; sprinkle mushrooms with remaining 1 tablespoon mozzarella cheese and 1 tablespoon bread crumbs.

    Mixture placed on mushrooms, and topped with some cheese.

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  7. Return mushrooms to the oven; bake until topping is golden brown and cheese is melted, about 10 minutes more.


For the vegetarian version, use chopped red pepper instead of pepperoni.

Nutrition Facts (per serving)

168 Calories
11g Fat
8g Carbs
11g Protein
Nutrition Facts
Servings Per Recipe 4
Calories 168
% Daily Value *
Total Fat 11g 14%
Saturated Fat 4g 21%
Cholesterol 70mg 23%
Sodium 591mg 26%
Total Carbohydrate 8g 3%
Dietary Fiber 2g 7%
Total Sugars 1g
Protein 11g
Vitamin C 21mg 103%
Calcium 203mg 16%
Iron 3mg 15%
Potassium 481mg 10%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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