Mediterranean Couscous Salad

3/4 cup uncooked couscous

1 cup cubed plum (Roma) tomatoes (3 medium)

1 cup cubed unpeeled cucumber (1 small)

1/2 cup halved pitted kalamata olives

1/4 cup chopped green onions (about 4 medium)

1/4 cup chopped fresh or 1 tablespoon dried dill weed

2 tablespoons lemon juice

2 tablespoons olive or vegetable oil

1/8 teaspoon salt

2 tablespoons crumbled feta cheese