Sweet potatoes may be a Thanksgiving staple, but they'll be plentiful at city green markets all throughout the winter.  

Amelia Tarpey, program and publicity manger for GrowNYC Greenmarkets, said the hearty crops can cost between $2,50 to $4 per pound this time of year at city farmers markets. She said sweet potatoes sweet or savory, breakfast or dinner, orange or purple — but they're all delicious.