Peel and wash the carrot and cut it lengthwise into wide strips. Clean and wash broccoli, divide into small florets and possibly cut into slices. Cook the pasta in boiling salted water for 9-12 minutes until al dente.
Cook the carrots in boiling salted water for about 5 minutes. Add broccoli after 2 minutes. Roast pine nuts in a pan without fat until golden brown. Peel garlic and chop roughly. Wash the parsley and pluck the leaves from the stalks.
Finely puree with half of the pine nuts, garlic and parmesan. Stir in the oil. Mix the drained pasta, vegetables and crabs and place on a plate. Spread the pesto on top and serve sprinkled with remaining pine nuts.