For years, tuna mayonnaise has been a go-to sandwich filling, beloved for its creamy texture and nutritional benefits. Tuna is rich in protein, vitamin B3, vitamin D, calcium, and magnesium. However, one simple ingredient swap can elevate this classic dish: replacing mayonnaise with olive oil.
Why Olive Oil Works Better
Growing up in an Italian household, olive oil was a staple. Experimenting with it in tuna salad revealed that olive oil doesn't just substitute mayonnaise—it enhances the taste. Mayonnaise often makes tuna clump together, resulting in a mushy, heavy, and greasy texture. In contrast, olive oil brings out the natural saltiness of tuna, lightly coating the flakes for a fresher, brighter flavor. Additional ingredients like sweetcorn, cucumber, or red onion also taste more vibrant when mixed with olive oil.
How to Make the Swap
Instead of spoonfuls of mayonnaise, drizzle one to two tablespoons of olive oil per drained tin of tuna. Stir gently and add more oil only if the tuna seems dry. The goal is to lightly coat the tuna, not drench it. For best results, use Albacore tuna—a larger fish with pale, firm flesh and a delicate flavor that lets the olive oil shine.
This simple change transforms the tuna sandwich into a lighter, more flavorful dish. Give it a try and taste the difference.
