Watercress and Seafood Salad

Name: Watercress and Seafood Salad
Ingredients: 2 tablespoons sesame oil; 2 tablespoons chopped garlic; 8 to 10 medium-sized shrimp, peeled, deveined and cleaned; 6 to 8 ounces frozen or fresh squid cleaned and sliced into tubes; 5 ounces mussels; 2 bunches of watercress, rinsed and cleaned, 1/2-inch of stems snipped off; 2 to 3 tablespoons soy sauce; 1 medium red onion; 2 tomatoes concasse or cut into strips; 6 ounces bean sprouts, mung or soy; 2 ounces chervil; 1/2 bunch of chives cut into 1-inch sticks; 2 to 3 ounces champagne vinegar; Salt and pepper; 2 to 3 ounces feta cheese for garnish