Combine all ingredients and cook immediately or place in the refrigerator for 1 to several hours. Cook in a large skillet until meat is no longer pink, Drain well. Serve wrapped in a pita with Tzatziki, slices of onion, and fresh parsley, if desired.

Makes 2 cups (8 one-quarter cup servings).

Tzatziki (Satziki) Sauce - Gyro Sauce

Place yogurt in a small colander lined with several layers of cheesecloth or coffee filters. Place colander over a small bowl into which whey will drain. Place colander and bowl in the refrigerator for approximately 2 hours. Discard whey. Combine thickened yogurt (yogurt "cheese") with remaining ingredients and refrigerate for several hours.

Makes 1 to 1 1/2 cups.