Stuffed Portobello Mushrooms are the ultimate vegetarian comfort food—hearty, savory, and satisfying enough to be a main course. The large, meaty mushroom caps are filled with a creamy, flavorful mixture of spinach, garlic, cream cheese, Parmesan, and breadcrumbs, then baked until tender and golden.
They’re quick enough for a weeknight dinner but elegant enough for guests. Serve them with a side salad or crusty bread for a complete meal that even meat-lovers will love.
Instructions
Preheat and Prepare Mushrooms
Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper. Gently wipe the mushroom caps clean with a damp paper towel. Remove the stems (save for another use) and use a spoon to scrape out the dark gills.
Brush the caps with 1 tablespoon of olive oil and season with salt and pepper. Place cap-side down on the baking sheet. Bake for 8 to 10 minutes to release moisture. Remove and drain any liquid.
Sauté the Aromatics
While the mushrooms bake, heat the remaining 1 tablespoon of olive oil in a skillet over medium heat. Add the onion and cook for 3 to 4 minutes until softened. Add the garlic and cook for 1 minute. Add the spinach and cook for 2 to 3 minutes until wilted. Remove from heat.
Make the Stuffing
In a bowl, combine the cream cheese, Parmesan cheese, half of the mozzarella (¼ cup), breadcrumbs, red pepper flakes (if using), and the cooked spinach mixture. Mix until well combined. Season with salt and pepper.
Stuff the Mushrooms
Divide the filling evenly among the mushroom caps, mounding it slightly. Sprinkle the remaining mozzarella cheese on top.
Bake
Return the stuffed mushrooms to the oven. Bake for 10 to 12 minutes, until the filling is hot and the cheese is melted. For a golden top, switch to broil for the last 1 to 2 minutes.
Serve
Garnish with fresh parsley and a drizzle of balsamic glaze if desired. Serve warm.
These Stuffed Portobello Mushrooms are hearty, flavorful, and satisfying—perfect for any occasion.
