The term 'Pasta Sauce Ingredient' can be summarized by three crossword solutions: TOMATO (6 letters), Bayleaf (7 letters), and Plumtomato (10 letters). TOMATO is a widely used ingredient in pasta sauce, as it provides a rich flavor and texture. Bayleaf is an aromatic herb that adds a subtle flavor to the sauce. Lastly, Plumtomato is a hybrid of TOMATO and plum, which has a sweet and tangy taste. All three ingredients are essential for making a delicious pasta sauce.