Set griddle to around 375 - 400+ to start, which I think was a little high. The extra sugar charred a touch more than I wanted. 5m per side, covered in a steam dome or with a grill press was perfect cook time though.
Didn't have butternut squash or kale, so added in mushrooms, spinach, and shrimp instead. I think this made it a little thinner than called for, so I added a touch of corn starch ... but the flavors were amazing! Totally killer and should be a regular addition.