Salmon Trout Tartare With Pressed Caviar And Tomatoes

Name: Salmon Trout Tartare With Pressed Caviar And Tomatoes
Ingredients: 2 tablespoons minced sweet onion; 2 tablespoons minced scallions; 1 tablespoon minced chives; 1 1/2 teaspoons fresh lime juice; 1 teaspoon Asian sesame oil; 1 tablespoon extra-virgin olive oil, plus more for drizzling; 2 tablespoons pressed caviar (2 ounces); 1/2 pound skinless salmon trout or salmon fillet, cut into 1/4-inch dice; Salt and freshly ground pepper; 12 cherry tomatoes, halved; 12 small, tender herb sprigs, such as tarragon, parsley or chervil