Scalloped Portobello Mushrooms Recipe

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Ricky Jackson Modified: March 23, 2022
Scalloped Portobello Mushrooms Recipe

How To Make Scalloped Portobello Mushrooms

These mouthwatering Portobello mushrooms are baked to perfection for the best cheesy meal! Whip up this tasty side in just under an hour.

Preparation: 10 minutes
Cooking: 35 minutes
Total: 45 minutes



  • ½cupMozzarella cheese,fresh shredded
  • ½cupGruyère,fresh shredded
  • ½cupparmesan,fresh grated
  • 2tbspparsley,freshly chopped, plus more for garnish
  • 2tspItalian seasoning,or dried Italian mixed herbs
  • ½tsponion powder
  • ½tspgarlic powder
  • 8large portobello mushrooms
  • salt,to season
  • cracked black pepper,to taste
  • ½cupheavy cream
  • 2garlic cloves,minced, or 2 tsp minced garlic


Portobello Mushrooms:

  1. Preheat the oven to 400 degrees F.

  2. In a medium bowl, toss together the mozzarella, gruyere, parmesan, parsley, Italian seasoning, onion powder and garlic powder. Set aside.

  3. Remove the stems from the Portobello mushrooms, then slice them into ½-inch slices.

  4. Arrange ⅓ of the mushrooms in the bottom of a 2-quart baking dish.

  5. Sprinkle with ⅓ of the cheese mixture. Season with salt and pepper.

  6. Repeat layering two more times.

  7. Mix together the cream and minced garlic, then pour them mixture over the mushrooms.

  8. Cover with foil, then bake for 30 minutes until the mushrooms are tender.

  9. Remove the foil, then carefully pour out the excess liquid from the bottom of the dish into a small pot.

  10. Set the pot aside.

  11. Return the mushrooms to the oven, then broil them for 4 to 5 minutes until golden.

Liquid Gravy (Optional):

  1. Bring the mushroom pan juices in the pot to a simmer over medium-high heat.

  2. Mix 1 teaspoon of cornstarch with 1 tablespoon of water, then whisk in the cornstarch mixture until fully combined.

  3. Continue to simmer while stirring until the gravy has thickened.

  4. Serve the mushrooms with gravy, and enjoy!


  • Calories: 272.62kcal
  • Fat: 20.06g
  • Saturated Fat: 12.17g
  • Trans Fat: 0.01g
  • Monounsaturated Fat: 5.72g
  • Polyunsaturated Fat: 0.91g
  • Carbohydrates: 9.13g
  • Fiber: 2.49g
  • Sugar: 4.96g
  • Protein: 16.44g
  • Cholesterol: 66.97mg
  • Sodium: 531.66mg
  • Calcium: 414.07mg
  • Potassium: 661.73mg
  • Iron: 1.26mg
  • Vitamin A: 185.79µg
  • Vitamin C: 2.33mg
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