Wash the zucchini, cut off the ends and dice. Blanch in hot water for 2 minutes and drain. Eight tomatoes, season with salt and sugar and drain in a sieve. Wash the rocket and cut into small pieces. Cook the penne al dente and rinse with cold water, drain and drain very well. Mix the noodles that are no longer warm with the vegetables, basil and finely chopped garlic. Season to taste with olive oil, salt and pepper.