One 3-inch Parmesan rind, plus freshly grated Parmesan, for garnish
1 bay leaf
1 teaspoon dried thyme
Kosher salt and freshly ground pepper, to taste
1 bunch (6 ounces) green curly kale, stems removed and leaves roughly chopped
Directions
In a large saucepan, heat the olive oil over medium heat. Add the onion and leek, and cook until softened, 4 minutes. Add the carrots and celery, and cook until beginning to soften, another 4 minutes. Add the garlic and cook until fragrant, 1 minute.
Stir in the farro, followed by the squash, chicken stock, tomatoes, Parmesan rind, bay leaf, thyme, salt and pepper. Bring to a light simmer and cook, partially covered, until the farro and squash are tender, 30 to 35 minutes.
Stir in the kale and cook until tender, 2 minutes more. Adjust the seasoning with salt and pepper, then divide between bowls. Garnish with freshly grated Parmesan and serve.