Wash the aubergines and cut them into 3 cm long slices. Heat the oil in a pan and fry the aubergines on each side for about 3 minutes. Peel onion and garlic and dice finely. Heat the fat. Sauté onion and garlic in it until transparent. Add flour and sauté. Add fish stock and cream, stirring constantly, bring to the boil and simmer for about 10 minutes.
Cook the spaghetti in plenty of boiling salted water for about 10 minutes until al dente. In the meantime, clean spring onions and cut them into diagonal rings. After about 8 minutes of cooking time add to the sauce. Wash the thyme, dab dry and pluck coarsely.
Chop 2/3 of the thyme finely and add to the sauce. Add the shrimps and eggplant wedges and heat. Season the sauce with salt and pepper and serve with the spaghetti. Garnish with remaining thyme