8 Incredibly Delicious Ways to Eat Canned Sardines | Clean ... 1. Spicy Sardine Salad Sandwich from Killing Thyme. Take canned sardines, add a touch of mayo, scallions, capers, celery, and herbs, plus a squeeze of lemon and you have a fresh and healthy take on the classic tuna salad. If you like tuna salad, this is a good way to ease into the world of canned sardines. 2.