Transfer the tomatillo mixture to a bowl and add the flesh of the squash. (kitchenoperas.com)
Roast the halves face - down on a baking pan or sheet for 30 - 40 minutes, until the flesh of the squash is fork - tender and has separated into spaghetti - like strands. (insteading.com)
Cook in a 200 C (400 F) oven for 40minutes to 1 hour (adding more water as needed to top up), or until a fork can easily pierce the flesh of the squash. (wholeheartedeats.com)