Butternut Squash Gratin with apples

1 (2 -3 lb) butternut squash 2 tablespoons unsalted butter 3 cups halved and sliced onions salt 1/4 teaspoon black pepper 3 cups peeled peeled cored sliced[...]

6 cups butternut squash (peeled and cubed into about 1/2-inch pieces) 2 -3 tablespoons butter (can use oil) 2 large leeks , thinly sliced 2 granny smith[...]

5 cups cubed peeled butternut squash (1/2-inch cubes) 1 teaspoon olive oil 1 1/2 cups thinly sliced leeks 2 cups cubed peeled braeburn apples (1/2-inch cubes)[...]

1 1/2 cups coarse fresh breadcrumbs 2 tablespoons butter , melted kosher salt (coarse) 3/4 cup grated sharp cheddar cheese 1 teaspoon fresh thyme leave 1 Make[...]

2 1/2 tablespoons oil, divided 1 (20 ounce) butternut squash, sliced into 1/8-inch thick pieces salt and pepper 1/8 teaspoon ground nutmeg , divided 1 1/2[...]