Drain the tuna and beans thoroughly to prevent excess liquid. For milder onion flavor, soak diced onion in cold water for 5–10 minutes and drain. Chill for 30–60 minutes before serving for best flavor. Store in an airtight container in the refrigerator for up to 4 days. Not recommended for freezing due to fresh vegetables and feta.
Keyword healthy tuna bean salad, Mediterranean tuna salad, no mayo tuna salad, tuna salad with balsamic dressing