I think these Tofu Shirataki noodles are the best things ever. I've tried the Fettuccine, Macaroni and Angel hair. They are all fantastic and with only 20 calories per bag. The texture is more like a rice noodle, but they pair well with anything. I have not tried frying them yet, but after boiling them (to get all the STANK out) your options are limitless! I've paired mine with veggies and egg whites for my fake Chinese food. Using real ginger really gives it a ton of flavor. Just watch your soy sauce. It has 10 calories per table spoon. I can totally stuff myself with 300 calories of this lunch!
They are sold in the refrigerated section in produce. They aren't the cheapest things, but if you want pasta, this is totally the way to go.