Lemon Greek Salad Serving Size : 4 1 medium unpeeled cucumber 2 cups bite-size pieces spinach 2 cups bite-size pieces Boston lettuce 1/4 cup crumbled Feta cheese 2 tablespoons sliced green onions (with tops) 10 pitted ripe olives -- sliced 1 medium tomato -- cut into thin wedges Lemon and Mustard Dressing -- (recipe follows) LEMON AND MUSTARD DRESSING 2 tablespoons lemon juice 1 tablespoon olive or vegetable oil 1 teaspoon sugar 1 teaspoon Dijon mustard 1/8 teaspoon pepper Score cucumber by running tines of fork lengthwise down sides; slice. Toss cucumber slices and remaining ingredients with Lemon and Mustard Dressing. LEMON AND MUSTARD DRESSING: Shake all ingredients in tightly covered container.