Wot, no pasta?

I do like a nice Bolognese sauce – I use Quorn mince as a base, with beef broth to add flavour, garlic, tomatoes, onions, peppers and herbs. Even my almost obligate carnivore other half likes it! But what about the pasta? I have been using wholewheat in small amounts but it doesn’t give the nutritional ‘bang for the buck’ as they say. I have been experimenting with substitutes – one is finely shredded lettuce, which does give nice long thin threads for the sauce to cling to and a crunchy freshness. The other idea is courgettes - (zucchini in the USA). I cut them very thin lengthways and steam in the microwave till tender. A nice alternative to penne is mushrooms sliced quite chunkily. Shirataki noodles are quite good and almost calorie free but are best in wet dishes like soups. I was wondering if anyone had any better ideas?