We’ve recently discovered “It’s Skinny” pasta made from konjac (which I’d never heard of). Each package contains two portions, you just rinse and use either cold or hot. It comes in spaghetti, fettucine, angel hair, and rice. It’s naturally gluten free, and each serving is only 4.5 calories and no net carbs. We’re amazed. It has no smell or weird flavor and has an almost perfect mouthfeel. I’ve used the strand versions with sauces (just run hot water over the “pasta” in a colander to warm it or simply let the hot sauce do the work) and the rice version instead of orzo in salads. To us, it’s a perfect substitute.
(I don’t claim that you can’t distinguish a piece of cooked plain pasta from this product but, in a dish, I really can’t tell the difference.)