Ingredients
Equipment
Method
Step-by-Step Instructions
- Preheat your oven to 425ºF (220ºC). Prepare your ingredients while the oven heats.
- In a large sauté pan, heat extra-virgin olive oil over medium heat. Add chopped yellow onion and sauté for about 7-8 minutes until soft and translucent. Stir in minced garlic and crushed red pepper flakes for 2 more minutes.
- Add Lacinato kale, stirring for about 2-3 minutes until wilted. Pour in heavy cream and add grated Parmesan, Dijon mustard, fresh thyme, salt, and black pepper. Let simmer for 3-5 minutes.
- Grease a 3-quart baking dish with olive oil. Layer the cubed butternut squash evenly across the bottom. Pour the kale mixture over the squash and sprinkle with shredded Gruyere cheese.
- Cover the casserole dish loosely with aluminum foil and bake for 30 minutes. Check for doneness by piercing the squash with a fork; it should be tender. Bake for an additional 10 minutes if needed.
- Prepare the topping by combining torn sourdough bread with chopped walnuts, remaining Parmesan, olive oil, and a pinch of salt in a mixing bowl.
- After baking, remove the foil and sprinkle the topping evenly over the casserole. Return to the oven and bake uncovered for another 20 minutes. Broil for 1-2 minutes for extra crispiness if desired.
- Allow the casserole to cool for 5-10 minutes before serving to let the flavors settle and make it easier to serve.
Nutrition
Notes
Prep the butternut squash ahead of time and store it in the fridge. Taste the kale mixture while cooking to adjust seasoning. Use the oven for reheating leftovers for the best texture.
