Wash the courgettes, dry them and cut diagonally into 1/2 cm thick slices (wash other vegetables as well, cut eggplant and / or peppers into large pieces). Put the vegetables on a plate and sprinkle with salt so that they can draw water. The vegetables will cook better later.
In the meantime, prepare a sauce from the tomato juice, 1/8 l olive oil, the pressed garlic, finely chopped basil and a little salt. Stir the whole thing until smooth (if you want, you can add a little more garlic - but not too much so that it doesn`t get too hot).
Then pat the salted vegetables dry and grill them or fry them in a grill pan with the remaining and heated olive oil. If possible, soak the vegetables in the sauce while they are still warm and let them steep until they are eaten.
I had involtini made from pork and turkey in tomato sauce and herb / garlic potatoes.