Ingredients: 1 cup diced English/seedless cucumber 1 green onion, sliced 1/2 cup grape or pear tomatoes, halved, if desired 2 Tablespoons finely chopped fresh fennel, if desired 1 Tablespoon white balsamic (or rice) vinegar 2 Tablespoons olive oil, divided Salt and pepper, to taste 4 Halibut fillets (4 to 6 oz. each), fresh, thawed or... {...}