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Spinach-Stuffed Portobello Caps

By America's Test Kitchen

Published on February 22, 2017

Time

30 minutes

Yield

Serves 4

Spinach-Stuffed Portobello Caps

Ingredients

8 large portobello mushroom caps, gills removed5 tablespoons extra-virgin olive oil, plus extra for drizzlingSalt and pepper 1 ½ cups panko bread crumbs 4 garlic cloves, minced11 ounces (11 cups) baby spinach 7 ounces feta cheese, crumbled (1 ¾ cups)1 teaspoon grated lemon zest ¼ cup fresh mint leaves

Before You Begin

Use a spoon to remove the gills from the mushroom caps.

Instructions

  1. Adjust oven racks to upper-middle and lower-middle positions and heat oven to 475 degrees. Rub mushrooms with 3 tablespoons oil and season with salt and pepper. Arrange mushrooms gill side down on rimmed baking sheet and roast on lower rack until tender, about 15 minutes.
  2. Combine panko, garlic, 1/4 teaspoon salt, 1/4 teaspoon pepper, and remaining 2 tablespoons oil in large Dutch oven. Set pot over medium heat and cook, stirring constantly, until panko is lightly browned, about 2 minutes. Stir in spinach and cook until wilted, about 5 minutes. Off heat, stir in 1 cup feta and lemon zest.
  3. Flip mushrooms gill side up and distribute filling evenly among them. Sprinkle remaining 3/4 cup feta over top and bake on upper rack until feta starts to brown, about 8 minutes. Drizzle with extra oil, sprinkle with mint, and serve.
Spinach-Stuffed Portobello Caps

Spinach-Stuffed Portobello Caps

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By America's Test Kitchen
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Time

30 minutes

Yield

Serves 4

Ingredients

8 large portobello mushroom caps, gills removed
5 tablespoons extra-virgin olive oil, plus extra for drizzling
Salt and pepper
1 ½ cups panko bread crumbs
4 garlic cloves, minced
11 ounces (11 cups) baby spinach
7 ounces feta cheese, crumbled (1 ¾ cups)
1 teaspoon grated lemon zest
¼ cup fresh mint leaves

Ingredients

8 large portobello mushroom caps, gills removed
5 tablespoons extra-virgin olive oil, plus extra for drizzling
Salt and pepper
1 ½ cups panko bread crumbs
4 garlic cloves, minced
11 ounces (11 cups) baby spinach
7 ounces feta cheese, crumbled (1 ¾ cups)
1 teaspoon grated lemon zest
¼ cup fresh mint leaves

Ingredients

8 large portobello mushroom caps, gills removed
5 tablespoons extra-virgin olive oil, plus extra for drizzling
Salt and pepper
1 ½ cups panko bread crumbs
4 garlic cloves, minced
11 ounces (11 cups) baby spinach
7 ounces feta cheese, crumbled (1 ¾ cups)
1 teaspoon grated lemon zest
¼ cup fresh mint leaves

Why This Recipe Works

Panko bread crumbs make a quick and easy filling base.

Before You Begin

Use a spoon to remove the gills from the mushroom caps.

Instructions

  1. Adjust oven racks to upper-middle and lower-middle positions and heat oven to 475 degrees. Rub mushrooms with 3 tablespoons oil and season with salt and pepper. Arrange mushrooms gill side down on rimmed baking sheet and roast on lower rack until tender, about 15 minutes.
  2. Combine panko, garlic, 1/4 teaspoon salt, 1/4 teaspoon pepper, and remaining 2 tablespoons oil in large Dutch oven. Set pot over medium heat and cook, stirring constantly, until panko is lightly browned, about 2 minutes. Stir in spinach and cook until wilted, about 5 minutes. Off heat, stir in 1 cup feta and lemon zest.
  3. Flip mushrooms gill side up and distribute filling evenly among them. Sprinkle remaining 3/4 cup feta over top and bake on upper rack until feta starts to brown, about 8 minutes. Drizzle with extra oil, sprinkle with mint, and serve.

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