Preheat oven to 400°F.
In a medium oven safe dutch oven or other heavy bottomed pan, heat 2tbsp olive oil over medium heat. Add onions and cook, stirring occasionally, until translucent, about 3 minutes.
Add garlic and thyme and cook until fragrant, about 1 minute.
Add rice and cook, stirring frequently, until edges are translucent, about 3 minutes. Season with salt and pepper.
Add wine and cook, stirring, until wine is completely absorbed, about 2 minutes.
Add butternut squash and stock, bring the mixture to a boil. Stir in Kale.
Cover with lid (or with parchment, then foil); transfer to oven, and bake until rice is tender and has absorbed most of the liquid, about 20 minutes.
Serve hot, sprinkled with cheese.