These savory stuffed mushrooms deliver a perfect umami punch with a creamy miso and Kewpie mayo filling, topped with a golden Parmigiano Reggiano crust for the ultimate party appetizer.
Preheat your oven to 400°F and line a baking sheet with parchment paper. Trim the dry ends of the mushroom stems and gently pop the stems out to create intact caps.
Place the mushroom caps hollow-side up on the baking sheet. If any caps are unstable, shave a tiny sliver off the bottom so they sit flat.
Sauté the mushroom stems for deep flavor
Finely mince the removed stems. Melt the butter in a medium skillet over medium heat and sauté the stems until they are soft, golden, and aromatic.
Remove the skillet from the heat and allow the stems to cool slightly so they do not melt the creamy filling base.
Mix the umami filling and stuff
In a mixing bowl, combine the cream cheese, mayo, and white miso until the mixture is glossy and smooth. Fold in the sautéed mushroom stems and season with black pepper.
Spoon the filling into each mushroom cap, creating a small mound. Sprinkle each mushroom generously with finely grated Parmigiano Reggiano.
Bake, then finish while they are hot
Bake the mushrooms for 20 minutes until the filling is hot and the cheese tops are melted. Immediately garnish with chopped parsley before serving.
Notes
Pro Tip: To prevent watery mushrooms, wash them quickly under running water and pat them dry immediately rather than soaking them.Storage Tip: Leftovers can be stored in the refrigerator for a couple of days. For the best texture, reheat them in an air fryer to restore the golden crust.Sogginess Prevention: If your mushrooms are particularly large or juicy, pre-roast the empty caps for 5 minutes at 400°F and drain any liquid before adding the filling.Nutrition information is estimated based on common ingredients and serving sizes and may vary.