Cook the pasta until al dente according to the instructions on the packet. Then drain through a sieve.
Heat the butter in a pan, add the sliced carrots and fry for about 3 minutes. Meanwhile, halve the zucchini, cut into slices and add to the carrots in the pan. After about 2-3 minutes add the onions and corn and fry everything for another 2-3 minutes.
Add tomato paste, curry powder and flour and let it sweat briefly. Deglaze with the chicken stock and simmer on a low flame for about 10 minutes.
Add yoghurt and sour cream and heat briefly. Finally, season again with curry, salt and pepper.