I use then all the time, but don't have any specific recipes. You can use them any way you would normally enjoy pasta...Just healthified! ;-)
I have made them Mexican style...Added soy crumbles, cilantro, salsa...Kind of a Mexican spaghetti, I guess.
I have also just done them like spaghetti, but I do usually use soy crumbles, but you could use whatever ground meat that you enjoy on your healthy eating path!