If you love mushrooms, this dish is for you. Italian-seasoned portobellos are roasted until tender, then filled with marinara sauce and a generous amount of melty cheese. After a quick broil, they become golden and bubbly.
Serve these cheesy mushroom cups over a bed of spaghetti and top with toasty, buttery panko breadcrumbs for a satisfying crunch. It’s a hearty, meatless meal that’s full of flavor.
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Recipe details
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Ingredients
Instructions
- Preheat oven to 425°F (220°C). Line a baking sheet with parchment paper.
- Remove stems from portobello mushrooms and gently scrape out gills with a spoon. Brush both sides with olive oil and season with salt and pepper.
- In a small bowl, mix Italian seasoning with garlic powder. Sprinkle over the mushrooms, both sides.
- Place mushrooms gill-side down on the baking sheet. Roast for 15 minutes until tender.
- Meanwhile, bring a large pot of salted water to a boil. Cook spaghetti according to package directions until al dente. Drain and set aside.
- In a small saucepan, combine marinara sauce, mushroom stock concentrate and sugar. Simmer over low heat for 5 minutes.
- Flip mushrooms gill-side up. Spoon a little marinara sauce into each mushroom, then top with Italian cheese blend.
- Switch oven to broil. Broil mushrooms for 2-3 minutes until cheese is melted and bubbly.
- In a small skillet, melt butter over medium heat. Add panko breadcrumbs and cook, stirring, until golden brown, about 2 minutes.
- Toss spaghetti with remaining marinara sauce. Divide between plates, top with cheesy mushrooms and sprinkle with toasted breadcrumbs.
Recipe Tips
For extra flavor, add a pinch of red pepper flakes to the marinara sauce.
If you prefer a crispier breadcrumb topping, toast them a bit longer, watching carefully to avoid burning.
Use a spoon to gently scrape out the mushroom gills for a cleaner presentation.
FAQ
Can I use other mushrooms instead of portobello?
Yes, large cremini or baby bella mushrooms can be substituted, but adjust cooking time as they may cook faster.
Can I make this dish ahead of time?
You can roast the mushrooms and cook the spaghetti in advance. Assemble and broil just before serving for best results.
What can I use instead of panko breadcrumbs?
Regular breadcrumbs or crushed crackers work, but panko gives the crispiest texture.


























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