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Portabello Mushrooms with Chard and Feta

Grilling sturdy greens is easy when you have a perforated pan to keep them from falling between the grate bars. Rinse them well and use the water clinging to the leaves to wilt them. If you can't find large mushrooms, buy 6 smaller mushrooms and reduce the cooking time.
Prep Time 30 minutes
Servings 4
Author Jamie Purviance


  • 4 large portabello mushrooms each 3 to 4 ounces
  • Extra-virgin olive oil for brushing plus 1 tablespoon
  • 1 very large bunch Swiss chard 12 to 14 ounces
  • ½ cup crumbled feta cheese about 2½ ounces
  • ½ cup coarsely grated whole-milk mozzarella cheese about 2 ounces
  • ¼ cup plus 1/3 cup freshly grated Parmigiano­Reggiano® cheese divided
  • 2 tablespoons mayonnaise
  • 2 small scallions white and light green parts only, finely chopped (about 3 tablespoons)
  • 1 garlic clove minced
  • 1/8 teaspoon ground nutmeg or several fresh grindings whole nutmeg
  • 1/3 cup panko Japanese bread crumbs
  • Ground black pepper


  1. Prepare the grill for direct cook­ing over high heat (450° to 550°F). Using a damp paper towel, wipe the outside of each mushroom cap to clean. Using a small knife, cut out the stems.
  2. Holding 1 mushroom in your palm­ and using a small spoon, gently scrape out all the black gills, being careful not to tear the delicate cap (It's important to remove the gills. as they will discolor the filling during grilling.) Repeat with the remaining mushrooms.
  3. Brush a large perforated grill pan with oil. Rinse the chard under cold running water. Stack the wet leaves in the prepared pan.
  4. Grill the chard over direct high heat, with the lid closed, until the greens begin to wilt, 5 to 6 minutes, turning once or twice with tongs. Remove from the grill.
  5. Cut off the stem at the base of each leaf and discard. Fold the leaves in half lengthwise and twist to wring out the excess moisture. Using a heavy, large knife, coarsely chop the greens. You should have a generous 1 cup.
  6. In a medium bowl mix together the chopped greens, feta, mozzarella, ¼ cup Parmigiana Reggiano®, the mayonnaise, scallions, garlic, and nutmeg.
  7. In a small bowl mix together the panko, the remaining 1/3 cup Parmigiano Reggiano®, and the remaining 1 tablespoon of oil. Stir 1 tablespoon of the panko mixture into the greens filling. Season the filling to taste with pepper (about¼ teaspoon).
  8. Divide the greens filling evenly among the mushrooms, then pat gently with your hands to fill to the edge.
  9. Sprinkle the remaining panko mixture evenly over the filling.
  10. Place the mushrooms on the same grill pan. Grill over direct high heat, with the lid closed, until the cheese melts and the topping is deep brown, 8 to 12 minutes. Using a metal spatula and tongs, transfer the mushrooms to plates and serve.

Recipe Notes