Ingredients

1 piece (1/2 pound) butternut squash, seeded, peeled, and sliced lengthwise 1/2 inch thick

1 red pepper, stemmed, seeded, halved crosswise, and cut lengthwise into 8 strips

2 zucchini, halved crosswise and thinly sliced lengthwise

5 cloves garlic, unpeeled

1/2 large red onion, cut into 1 1/4-inch wedges

1 tablespoon extra-virgin olive oil

2 teaspoons verjus or freshly squeezed lemon juice

2 sprigs fresh rosemary

Sea salt and freshly ground pepper

Preparation

Fill a medium pot with water and bring to a boil. Add squash and cook until just tender. Drain squash and place in a large bowl along with peppers, zucchini, garlic, and onion in a large bowl. Add oil, verjus, and rosemary, and season with salt and pepper; toss to combine.

Preheat a grill pan over high heat. Drain vegetables and place on grill pan, working in batches if necessary. Cook vegetables until tender.