Roasting brings out the natural sweetness of squash in this vegetarian main course. Switch up the beans and herbs to transform this dish into something new. For instance, black beans with cilantro add Mexican flair, while white beans and basil make for an Italian-inspired roasted dinner.
Squash and other hard vegetables need a gentler heat, but still hot enough to caramelize. For large pieces, 400 F (200 C) is adequate to both soften the flesh and achieve a golden brown exterior; smaller cubes can handle a higher heat, up to 425 F (220 C).
Squash and filling can be made up to 2 days in advance and kept separately. Reheat in 300 F (150 C) oven to warm through.
Per serving:
Preheat oven to 400 F (200 C). Place squash cut side down on large parchment paper-lined baking sheet. Roast for 35 to 40 minutes, until tender when pierced with a knife.
Meanwhile, in large skillet, heat butter over medium-high heat until foamy. Continue to cook until nutty in aroma and light brown, about 1 to 2 minutes. Immediately add sage leaves, fry for 30 seconds to 1 minute, until crispy; transfer sage to small plate. To skillet, add chickpeas, salt, pepper, and nutmeg. Transfer to another large baking sheet, then oven, and roast until chickpeas are heated through, about 5 to 10 minutes.
Remove squash and chickpeas from oven. Stir vinegar into chickpeas and spoon into roasted squash. Serve topped with crispy sage and cheese.