In a saucepan with plenty of boiling water add the bouillon. Once dissolved, add the pasta and cook following pack instructions. When ready, drain. Meanwhile, in a large skillet, heat the olive oil. Add the onion and garlic and fry until fragrant. Add the passata and vegetable powder and cook on low heat for 15 minutes. Add the chickpeas and tuna, salt, and pepper. Add the drained pasta to the sauce, add the basil leaves, mix and serve!