Cook the spaghetti in boiling salted water for five to eight minutes. Wash, clean and dice the zucchini. Wash, clean and quarter the tomatoes. Remove seeds and dice the flesh.
Peel garlic and dice finely. Heat the oil in a pan. Fry the zucchini, tomatoes, garlic and shrimp meat briefly. Drain spaghetti, drain well and add. Wash the basil, pluck the leaves from the stalks and chop finely, except for a little bit for garnishing.
Arrange the spaghetti pan on plates, sprinkle with basil and garnish. Season with pepper. Garnish with lemon wedges as desired.