Preheat oven to 400° (375° convection).
Cut the turban squash in half, and using a thick spoon, remove the seeds and pulp.
Brush with coconut or olive oil. Place skin side down on baking sheet. Brush the sweet onion wedges and potato with oil. Place on the baking sheet with the squash.
Season with sea salt and fresh ground pepper.
Set timer for 15 minutes. Add the quartered pear.
Roast until squash is tender (about 40-45 minutes total).
While the squash cools to where it can be handled, start the soup. To a dutch oven, add a drizzle of coconut or olive oil. Bring the pan to medium-high heat. Add the ginger and garlic. Stir-fry until the mixture is fragrant.
Add the black mustard seeds. Continue until the seeds begin to pop. Pour in the broth.
Scoop the flesh from the squash leaving the skin behind. Add to the dutch oven with the roasted pear and onion.
Add the garam masala and turmeric.
Cover and simmer 10 minutes.
Using an immersion blender, purée until very smooth.
Add the coconut milk and coconut creamer. Stir to combine. Season with sea salt and ground pepper to taste. Bring the soup barely to a simmer. Do NOT BOIL.
Garnish with chopped cilantro and serve!