Canned tuna is reliable, but it's hardly a glamorous lunch (unless you're a cat). It often contains less mercury than fresh tuna fillets, but fresh or smoked tuna tends to have a better reputation ...

Served with some bruschetta, this tuna crudo becomes an elegant and satisfying snack or starter. Any sashimi-grade fish will work. Combine the grated tomato, lemon, sugar and vinegar in a bowl ...