Greek Salad

Name: Greek Salad
Ingredients: 3 tablespoons olive oil; 3 tablespoons red-wine vinegar; 1 teaspoon minced garlic; ½ teaspoon dried oregano; Coarse salt and freshly ground pepper; 1 head romaine lettuce, torn into bite-size pieces; 1 pint cherry or grape tomatoes, halved; 1 ½ cups crumbled feta cheese, (8 ounces); ½ red onion, halved and thinly sliced; 1 large cucumber, peeled, halved and thinly sliced; ½ cup Kalamata olives, pitted