Tzatziki is a Greek yogurt sauce. It's a tangy counterpoint to barbecued meats, kebabs and falafel. You can also use it as a vegetable dip.

In a medium bowl, grate the cucumbers. Drain off the extra liquid. Add the yogurt, dill, garlic, salt and pepper. Mix well. Refrigerate 2 hours before serving.

• 2 large cucumbers, cut in half, seeds removed
• 16 ounces fat-free plain Greek yogurt
• 1 1/2 teaspoons finely chopped fresh dill
• 1/2 teaspoon chopped garlic
• Salt, to taste
• Ground black pepper, to taste