18 September 2026
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THE UNIVERSAL GASTRONOMY AUTHORITY
World Kitchen Journal
Spinach and Mashed Potato Stuffed Mushrooms
Technique
By Claire Beaumont, the Technique desk · 3h ago · United States · 1 min ·

Spinach and Mashed Potato Stuffed Mushrooms

Garlicky spinach mashed potatoes provide down-home flair to this easy-yet-elegant classic starter that’s perfect for your next gathering or a quiet meal at home.

Ingredients · Servings 6
  • For the mashed potatoes:
  • 2 medium Russet potatoes
  • 2 tablespoons
  • vegan butter
  • ¼ teaspoon sea salt
  • ⅛ teaspoon ground black pepper
  • For the spinach:
  • 2 teaspoons olive oil
  • 1 clove garlic, minced
  • 3 cups loosely packed baby spinach leaves
  • For the topping:
  • ¼ cup
  • panko bread crumbs
  • 1 tablespoon melted vegan butter
  • ⅛ teaspoon garlic salt
  • For serving:
  • 12 Baby Bella mushrooms, stems removed
Method
  1. For the mashed potatoes, peel potatoes, and dice into 1-inch cubes. Place diced potatoes
  2. in a medium pot
  3. , and fill with water to cover. Bring to a boil and cook until potatoes are fork-tender.
  4. Drain potatoes in a colander, then return to the still-hot cooking pot. Using a potato masher or fork, mash potatoes to desired consistency. Stir in butter, salt, and pepper.
  5. For the spinach, into a medium skillet, heat olive oil over medium-high heat. Add garlic and cook approximately 1 minute. Add baby spinach leaves and cook for 3 minutes, stirring frequently until spinach leaves are wilted. Remove from skillet and place in a colander. Use the back of a spoon to press out any excess liquid. Place spinach on a cutting board and chop finely.
  6. For the topping, into a small bowl, add panko bread crumbs, melted butter, and salt. Toss to combine.
  7. To assemble, preheat oven to 350 degrees. Into a medium-sized mixing bowl, add mashed potatoes and spinach. Stir well to combine. Place mushrooms at least 2 inches apart on a baking sheet. Spoon mashed potato and spinach mixture into each mushroom cap. Bake approximately 10 minutes.
  8. Remove stuffed mushrooms from oven and top with breadcrumb mixture. Return to oven and bake an additional 5 minutes, until breadcrumbs are lightly golden in color. Serve warm.

What you need:

For the mashed potatoes: 2 medium Russet potatoes.

For serving: 12 Baby Bella mushrooms, stems removed.

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