Put the winter squash in a stainless saucepan, cover with filtered water, add a few pinches sea salt, bring to a boil, and simmer until fork-tender. Drain and cool slightly.
Cut any large cooked squash pieces down to roughly eighth-size chunks so they pulse evenly.
Grease the Artichaut baking dish with lard or coconut oil. Preheat the oven to 375°F.
Blend the eggs, homemade coconut cream, 1/2 teaspoon sea salt, and black pepper on medium for about 15 seconds, until completely combined.
Add the squash, oregano, sumac, and cumin. Pulse about 5 times, stopping while small squash pieces remain visible in the thick custard.
Pour the custard into the greased dish. Scatter the olives and chopped roasted red peppers evenly over the surface and add a light pinch of oregano.
Sprinkle the prepared sesame seeds around the edge in two passes so the border is thick enough to stay visible on the surface.
Bake about 30 minutes, until golden across the surface, slightly puffed in the center, and set without a wet ripple.
Rest 10 minutes on a wood trivet, then cut into 6 portions and serve.