The best trick to enjoying seafood without spending a lot of money is to spread its flavour throughout a dish rather than serving a large amount. In this tagliatelle dish, the shrimp is chopped into little pieces so that you get some in every bite, and the sauce is also well flavoured. It also boasts the anise taste of fennel, softened with carrot and garlic, and then combined with tomatoes and chili pepper for a spicy kick.