
1 small butternut squash, peeled, seeded, and cut into 1-inch cubes 1 tablespoon olive oil sea salt and freshly ground black pepper 6 tablespoons (¾ stick) unsalted butter, plus more if needed 8 ounces mixed fresh mushrooms, such as oysters, chanterelles, shitakes, or hedgehogs, cleaned and thinly sliced (3½ to 4 cups) 2 shallots, minces ¼ [...]


