Don’t toss all that excess oil—it contains a lot of the vitamin D and omega-3 fatty acids from the fish. We use this nutrient-dense oil rather than mayo to dress the salad, then pile it on a smear of avocados, which are packed with monounsaturated fats that encourage blood flow and boost brain activity. We love this combination on whole-grain toast but you can also toss it over pasta, greens, or grains.
How to Make It
Drain tuna, reserving 2 tablespoons oil. Combine tuna, reserved oil, celery, 3 tablespoons basil, and next 5 ingredients (through black pepper) in a medium bowl; toss to coat. Fold in eggs. Top each bread slice with about 3 tablespoons avocado, 2 tablespoons arugula, and 3/4 cup tuna mixture. Garnish toasts with remaining 1 tablespoon basil.