If you like Greek, check out Chicken or Pork Souvlaki with Tzatziki or this Seven Layer Greek Dip.
In a medium bowl, combine cucumbers, tomatoes, onion, parsley, and feta cheese. In a small bowl, whisk together sour cream or yogurt, lemon juice, garlic, dill, pepper, and salt; fold into cucumber mixture. Serve with tortilla or pita chips. Makes about 4 cups.