This grilled portobello and zucchini stack is a simple yet elegant vegan dish perfect for summer evenings or as a flavorful side.
Marinated portobello mushrooms and zucchini are grilled to tender perfection and layered, then topped with a sweet-tangy balsamic glaze.
The balsamic reduction adds depth, while the stacking presentation makes it a beautiful dish to serve for guests or a weeknight dinner.
Why Youโll Love This Recipe
- Grilling enhances the natural umami flavors of portobello mushrooms and adds a smoky note to zucchini.
- The balsamic reduction balances sweetness and acidity to complement the rich mushrooms and mild zucchini.
- Stacking the vegetables allows for a visually appealing presentation and makes each serving uniform and satisfying.
Grilled Portobello and Zucchini Stack with Balsamic Reduction
A flavorful vegan dish featuring layered grilled portobello mushrooms and zucchini, drizzled with a tangy balsamic reduction glaze.
- Prep time
- 15 minutes
- Cook time
- 15 minutes
- Servings
- 4
- Yield
- 4 stacks
Ingredients
- 4 large portobello mushroom caps, stems and gills removed (about 8 oz or 225 g)
- 2 medium zucchinis (about 12 oz or 340 g), sliced lengthwise into 1/4-inch (6 mm) strips
- 3 tablespoons olive oil, divided
- 2 cloves garlic, minced
- Salt, to taste
- Freshly ground black pepper, to taste
- 1/4 cup balsamic vinegar (60 ml)
- 1 tablespoon pure maple syrup or honey (use maple syrup for strict vegan)
- Fresh basil leaves, for garnish (optional)
Instructions
- Prepare the Vegetables In a small bowl, combine 2 tablespoons olive oil, minced garlic, salt, and pepper. Brush this mixture over both sides of the portobello mushrooms and zucchini slices. Let them marinate at room temperature for 10 minutes.
- Grill the Vegetables Preheat a grill or grill pan over medium-high heat. Brush the grill with the remaining 1 tablespoon olive oil to prevent sticking. Grill portobello mushrooms for about 5-6 minutes per side until tender and slightly charred. Grill zucchini slices for 2-3 minutes per side until grill marks appear and they are tender but not soft.
- Make the Balsamic Reduction In a small saucepan, combine balsamic vinegar and maple syrup. Bring to a simmer over medium heat and cook until reduced by half and syrupy, about 5-7 minutes. Remove from heat and let cool slightly.
- Assemble the Stacks On a serving plate, layer: 1 portobello mushroom cap, then 2-3 zucchini slices, then repeat to form stacks. Drizzle each stack generously with the balsamic reduction. Garnish with fresh basil leaves if desired.
Helpful Tips
- Marinating the vegetables adds flavor but do not over-marinate as zucchini can become watery.
- Use fresh, firm portobellos and zucchinis for the best texture.
- The balsamic reduction can be made ahead and stored in the refrigerator cooled to room temperature, then gently warmed before using.
Storage and Make-Ahead
Store any leftover stacks uncovered in the refrigerator and consume within 2 days for best texture.
Keep the balsamic reduction separately in an airtight container; reheat gently before serving.
This dish is best served fresh and not recommended for freezing.
Frequently Asked Questions
Can I use other types of mushrooms?
Yes, you can substitute portobello mushrooms with large cremini or shiitake mushrooms, but grilling times may vary slightly.
Is this dish gluten-free?
Yes, this recipe uses no gluten-containing ingredients and is naturally gluten-free.
Can I prepare this in advance?
You can grill the vegetables and prepare the balsamic reduction up to a day ahead, but assemble just before serving to maintain texture.











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