Grilled Tuna Salad with eggs

1/3 cup balsamic vinegar 1/4 cup olive oil 1 tablespoon dijon-style mustard 1/2 teaspoon bottled minced garlic 1 lb fresh tuna steak , cut 1-inch thick 1 1/2[...]

3/4 cup extra virgin olive oil 1/4 cup sherry wine vinegar (or balsamic, but sherry is better) 2 tablespoons minced shallots 1 1/2 tablespoons finely chopped[...]

8 ounces wild-caught tuna fillets , grilled 12 kalamata olives , pitted, chopped coarsely 2 tablespoons capers 2 hard-boiled eggs , chopped 1/4 cup red onion[...]