May be oriental melon

http://www.evergreenseeds.com/orientalmelon.html

Many think this is melon. But the leaves are similar to kabocha. And I grow them as winter squash now. The seeds are like pumpkin seeds, not the small honeydew seeds.

You can find this melon in the Asian grocery store. It's called Golden Melon. It has a milder flavor as compared to honeydew. Hope this helps.

it looks like vegetable spaghetti squash as it shows in this website http://www.raiseseeds.com/vegetables/squash/squash-vegetable-spaghetti-organic.html raiseseeds.com