Vegetables on the Grill: Grilled Portabello Mushroom Sandwich
June/July 1999
By Susan Belsinger
Makes 4 sandwiches
Grilling brings out the flavor of portabellos, while arugula adds an incomparable smoky flavor.
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- 1 large red bell pepper, roasted, peeled, stemmed, seeded and roughly chopped
- 2 cloves garlic
- ¼ cup packed fresh basil leaves
- ¼ cup packed fresh Italian parsley leaves
- Salt and freshly ground pepper to taste
- 2 tablespoons olive oil
- Olive oil for grilling
- 4 large portabello mushroom caps, brushed clean, stems removed
- 1 medium red or yellow onion, sliced crosswise into 4 slices
- Dried thyme sprigs or dried rosemary branches (optional)
- 4 slices Swiss or Gruyère cheese (optional)
- 4 whole wheat or sourdough rolls, split in half
- 1 generous cup arugula leaves, washed and patted dry or substitute spinach or lettuce
- Roast the bell pepper on the grill, skin and seed. In a food processor, pulse the roasted pepper with the garlic, basil, parsley, salt and pepper to a medium-fine consistency, scraping down the sides as needed. With the motor running, add the olive oil through the feed tube. Taste for salt and pepper and set aside.
- Brush the mushrooms and onion slices lightly with olive oil on both sides. Throw a handful of dried thyme sprigs or a few branches of rosemary on the fire just before grilling the vegetables. The onion will take a little longer than the mushrooms. Place a slice of cheese on each mushroom just before taking it off the grill. Remove the vegetables to a plate and season them with salt and pepper. Lightly grill both sides of the rolls.
- Spread both halves of each roll with the red pepper sauce. Layer the lower half with a mushroom, an onion slice separated into rings, and the arugula. Cover with the upper half of the roll. Serve immediately.
Susan Belsinger, a frequent contributor to The Herb Companion, treats her family to grilled vegetables all summer long. She is the author, with Thomas DeBaggio, of Basil: An Herb Lover’s Guide (1996) and several other books from Interweave Press.
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