金枪鱼米饭沙拉Tuna Rice Salad

Ingredients:
2 bowls              Cooked Rice
2 cans                Tuna In Water
2 pc                    Chopped Celery or Boiled Asparagus, cut in 1 cm long
1 pkt                  Cherry Tomato, cut into half
2 stalks               Chopped Spring Onion
1/2 no                Chopped Yellow Onion(Medium Size)
Sauce:
1/2 no                Lemon Juice
    1 tbsp             Dijon Mustard
     2 tbsp            Mayonnaise
Extra Virgin Olive Oil
Salt
Black Pepper Powder