Vegetables from the gardenabound in cups of chilled squash soup.
Melt butter in a large saucepan over medium-low heat. Cook onion, stirring occasionally, until softened, about 5 minutes. Add turmeric and cayenne; cook, stirring, 30 seconds. Add squash and stock; bring to a boil. Reduce heat; simmer, stirring occasionally, until squash is very tender, about 20 minutes.
Let cool slightly; puree in batches in a blender (so blender is never more than halfway full). Season with salt and white pepper; stir in lime juice. Refrigerate until cold, about 6 hours, or up to 1 day. Served chilled with seeds and paprika.