Grilled Lemon-Oregano Swordfish Sandwiches

Grilled swordfish sandwich with Greek attitude. The fish marinates briefly in lemon, olive oil, and fresh oregano, then hits the grill just long enough to get char marks and stay juicy in the middle. A quick tzatziki-style sauce made from shredded cucumber, plain yogurt, mint, and garlic goes on top, cooling the whole thing down.

Peppery watercress or arugula on a crusty roll adds bitterness that balances the richness of the fish. If swordfish isn’t at your market, this same treatment works for tuna, mahi mahi, or any firm, meaty fish steak that can stand up to a grill grate.

Summer cooking that doesn’t feel like a compromise. You get a real, dense, satisfying sandwich without the heaviness of a burger.

Kitchen Tips

• Squeeze the shredded cucumber hard in a clean cloth or paper towels. Wet cucumber makes watery sauce that slides off the fish.
• Don’t marinate the swordfish longer than 30 minutes. The lemon juice starts to ceviche the fish and turn the texture mealy.
• Oil the grill grates before the fish goes on. Swordfish sticks notoriously, and a clean grate gets you those crosshatched char marks.
• Grill hot and fast: 2 to 3 minutes per side max. Overcooked swordfish turns dry and chalky quickly.

Variations

• Use pita bread or ciabatta instead of a roll for a more Mediterranean feel.
• Swap mint for fresh dill in the yogurt sauce for a more Scandinavian twist.
• Add thin slices of red onion or tomato to the sandwich for extra crunch and acid.