Cucumbers and Tomatoes in Yogurt (Raita)

2 medium cucumbers
2 scallions (with tops), chopped
1 teaspoon salt
2 medium tomatoes, chopped
1/2 clove garlic, minced
2 tablespoons minced cilantro
1/2 teaspoon ground cumin
1/8 teaspoon pepper
1 cup plain yogurt

Cut cucumbers lengthwise into halves.
Scoop out seeds; chop cucumbers.
Mix cucumbers, scallions and salt; let stand 10 minutes. Add tomatoes.
Mix remaining ingredients except yogurt; toss with cucumber mixture.
Cover and refrigerate at least 1 hour.
Drain thoroughly.
Just before serving, fold in yogurt.

Yields 6 servings.