One 3-inch Parmesan rind, plus freshly grated Parmesan, for garnish
1 bay leaf
1 teaspoon dried thyme
1 tsp kosher salt
1/2 tsp black pepper
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, carrots, and celery, and cook until beginning to soften, about 5 minutes. Add the garlic and cook until fragrant, 1 minute.
Add the squash, chicken stock, tomatoes, Parmesan rind, bay leaf, thyme, salt, and pepper. Bring to a light simmer and cook, partially covered, for 20 minutes, then add barley and cook for another 8 minutes.
Stir in the kale and cook until tender, 2 minutes more. Adjust the seasoning with salt and pepper.