Step 1

Preheat the oven to 400˚F (200˚C). Line a large baking sheet with parchment and spray it lightly with cooking spray.

Step 2

Place the squash halves, cut side down, on the baking sheet. Roast until tender, 25-30 minutes for honeynut squash, or 40-50 minutes for acorn squash. Remove the pan from the oven and flip each squash over so that the cut side is facing up. Set aside. Increase the oven temperature to 550˚F. Do Ahead: The squash can be roasted up to 8 hours in advance. Leave at room temperature.

Step 3

While the squash cooks, make the filling. Heat 1 tablespoon of the olive oil in a large skillet over high heat. Add the lamb, and season with salt and pepper. Cook, stirring and breaking up the meat with a wooden spoon, until browned and cooked through (if the lamb releases a lot of fat while cooking, spoon it off as it cooks). Using a slotted spoon, transfer the meat to a plate and discard the drippings.

Step 4

Heat the remaining 2 tablespoons of olive oil in the same skillet over medium heat. Add the onion, and season with salt and pepper. Cook, stirring occasionally, until tender and lightly browned, about 5-7 minutes. Stir in the garlic, ginger, and tomato paste. Cook, stirring, 1 minute. Sprinkle in the cumin, coriander, cinnamon and cayenne. Stir until fragrant. Pour in the chicken broth and give everything a good stir, scraping up any brown bits from the bottom of the skillet. Bring to a boil. Return the meat to the skillet, and reduce the heat to a simmer. Cook 5 minutes, or until thickened.

Step 5

Remove the pan from the heat, and stir in the pine nuts, mint and cilantro. Taste and season with salt and pepper. Let cool slightly.

Step 6

Melt the butter in a small saucepan. Continue cooking, swirling occasionally, until the butter is golden brown and smells nutty. Pour the butter over the breadcrumbs and toss to combine. Season with salt and pepper, and then fold in the feta.

Step 7

Season the squash halves with salt and pepper (if using acorn squash, I like to add a drizzle of honey or maple syrup to each squash cavity since it's not as sweet as honeynut). Spoon the lamb filling into each squash cavity, mounding it firmly in the cavity and over the top of the squash. Sprinkle the breadcrumbs over each squash, pressing them to adhere. Do Ahead: The stuffed squash can sit at room temperature for up to 1 hour.

Step 8

Roast the stuffed squash in the 550˚F oven until the top is lightly browned and crisp, about 4-6 minutes. Garnish with additional mint and cilantro before serving.