Canned Sardines in olive oil recipe. It’s easy and quick to prepare. Sardines come in a packed canned box completely dipped in 100 % olive oil. Net wt. 4.375 OZ. (124 g) per can. This is a great pantry food recipe idea I often use this. Easy to stock and use when required. Sardine is a wild-caught sea fish canned and sealed, completely dipped in olive oil, and is a smooth, shiny silver-skinned fish. These are soft taste buttery, and are really tasty. Canned sardines are a hidden gem in the culinary world. These small, oily fish, packed neatly in tin cans, are not only delicious but also brimming with nutritional value.