Finely dice the onion and place in a saucepan with tomato paste, oil, balsamic vinegar and chopped tomatoes. Fill the empty tomato can 1 1/2 times with water and add this to the pot as well. Mix everything well and season with salt, pepper, Italian herbs and the fresh basil. Take a little more salt than for a normal sauce, as the pasta is cooked at the same time.
Put the pasta in the mixed sauce and cook for about 15-20 minutes until the sauce has thickened enough and the pasta is al dente.
The dish can of course be varied at will, e.g., by adding fresh vegetables (zucchini, corn, tomatoes, eggplant, ), mozzarella or feta.