✓ Pesach-friendly. Look for a Pesach hechsher on: quinoa, broth, cheese. Pesach recipes and menu planner
Quinoa-stuffed portobello mushrooms are a satisfying vegetarian main. The caps are filled with quinoa, sautéed onion and garlic, sun-dried tomatoes, parsley and basil, topped with mozzarella and parmesan, and baked until golden.
Preparing the Mushrooms
Remove the dark gills completely and pat the caps dry; otherwise the filling turns watery. Brush them with oil and season before filling. Cook the quinoa in broth for more flavor. Bake until the mushrooms are tender and the cheese has melted.
Kosher Notes
With mozzarella and parmesan, these are dairy (milchig). Use cheese with a reliable hechsher. For a pareve version, leave out the cheese and stir 2 tablespoons of nutritional yeast into the quinoa.
Make-Ahead
Assemble up to 4 hours ahead and refrigerate. Leftovers keep for 3 days.

Ingredients
What I use for this recipe
- Nonstick skilletSee it on Amazon
- Rimmed baking sheetSee it on Amazon
- SaucepanSee it on Amazon
- Parchment paperSee it on Amazon
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Method
- Preheat oven to 375°F. Line a baking sheet with parchment paper.
- Clean mushroom caps with a damp paper towel. Remove stems and scrape out dark gills with a spoon. Pat caps dry and place gill-side down on paper towels for 15 minutes.
- Rinse quinoa in a fine-mesh strainer until water runs clear. In a medium saucepan, bring vegetable broth to a boil. Add quinoa, reduce heat to low, cover, and simmer for 15 minutes until liquid is absorbed. Remove from heat and let stand 5 minutes, then fluff with a fork.
- Heat 2 tablespoons olive oil in a large skillet over medium heat. Add diced onion and cook for 5 minutes until softened. Add garlic and cook 1 minute more until fragrant.
- Stir in cooked quinoa, sun-dried tomatoes, parsley, basil, salt, pepper, and red pepper flakes if using. Mix well and remove from heat. Let cool slightly, then stir in half the mozzarella cheese.
- Brush mushroom caps on both sides with remaining 1 tablespoon olive oil. Season with salt and pepper. Place gill-side up on prepared baking sheet.
- Divide quinoa mixture evenly among mushroom caps, mounding it slightly. Top with remaining mozzarella and all the Parmesan cheese.
- Bake for 20-25 minutes until mushrooms are tender and cheese is golden brown. Let cool for 5 minutes before serving.
Notes
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