Tuna Packed in Oil

Once opened, transfer any unused tuna to an airtight container and refrigerate. Use within 3 days.

Drain the oil before using if you prefer a less rich flavor, or use it in dressings and sauces for extra depth.

Look for tuna packed in olive oil for a more nuanced flavor.

Flake the tuna with a fork for a lighter texture in salads and sandwiches.

Mayonnaise

Celery

Red onion

Lemon juice

Capers

Hard-boiled eggs

Pasta

Bread

Discarding the flavorful oil: It can be used in other dishes.

Not properly storing leftovers: Unused tuna needs refrigeration to prevent spoilage.