Scalloped Portobello Mushrooms

Another take on a “keto scalloped potato,” with an earthy & upscale twist.

Scalloped Portobello Mushrooms probably isn’t the first thing you think of once you hear “scalloped,” right?  I’ve done many versions of a keto potato, a “faux-tato,” from a Radish au Gratin to a Brussels Sprouts Cauliflower au Gratin.  If you like stuffed mushrooms, you’ll love this surprisingly keto recipe.

crowd-pleaser & great vegetarian option

Here in Pennsylvania (West Chester, western suburb of Philadelphia) we are under stay-at-home orders due to the COVID-19 pandemic.  The quarantine occurred over Easter 2020 and traveling for family wasn’t an option; I had the opportunity to host my first Holiday at home and made a low-carb meal, without the real potato.

Easter Dinner 2020 Keto Menu:

Now, what to do with all that leftover Easter Ham?  

Table of Contents


  • 10 Large Portobello Mushroom Caps
    stem removed, cap scraped
  • 1 cup Gruyère, shredded
  • 1/3 cup Parmesan, shredded
  • 1/2 cup Heavy Whipping Cream
  • Seasonings
    • 2 tablespoons Parsley
    • 2 teaspoons Italian Seasoning
    • 1/2 teaspoon Garlic Powder
    • 1/2 teaspoon Onion Powder
    • 2 cloves Garlic, minced
      (2 teaspoons minced garlic)
    • Salt + Pepper

Can’t find Gruyère?  You can use Swiss.

Scalloped Portobello Mushrooms 1Scalloped Portobello Mushrooms 2Plated - Scalloped Portobello MushroomsPlated Zoom - Scalloped Portobello Mushrooms


  1. Preheat the oven to 400.
  2. In a medium bowl, toss together cheese and seasonings; set aside.
  3. Remove stems from portobello mushrooms, scrape bottom of cap, and cut into 1/2 inch slices.
  4. Grease baking dish and layer slices of portobello mushroom and cheese; pour and cover with cream.
  5. Bake for 30 minutes.

Nutrition Facts

Nutrition Facts - Scalloped Portobello Mushrooms
Nutrition Facts – Scalloped Portobello Mushrooms
  • Total Servings:  6
  • Serving Size:  1
  • Total Carbs:  8.2g
  • Net Carbs:  6.4g
  • Fat:  15g
  • Protein:  9.6g

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