Wash the chicken filet, dab dry and cut into strips. Clean, wash and finely dice the celery and bell peppers. Peel and chop onion and garlic. Clean, wash and finely dice the carrots.
Wash the thyme, dab dry and pluck the leaves from the stems. Heat the oil in a large pan. Fry the chicken meat in it while turning. Add onion, garlic, thyme and vegetables and fry briefly.
Stir in tomato paste and season with salt, pepper, paprika and sugar. Chop the tomatoes in the tin with a long knife. Add the vegetables, bring to the boil and simmer for about 8 minutes at low heat.
Season again with salt, pepper, paprika and sugar. Meanwhile cook the noodles in boiling salted water for about 8 minutes. Drain and quench. Arrange pasta and chicken bolognese on a plate.
Sprinkle with Parmesan cheese and garnish as desired with thyme and celery green.