Step 1

In a 4-quart slow cooker combine onions, olives, dried tomatoes, broth, lemon juice, 2 teaspoons of the Greek seasoning, and the garlic.

Step 2

In a small bowl whisk together oil, salt, pepper, and the remaining 1 teaspoon Greek seasoning. Brush turkey with oil mixture. Place turkey in cooker, trimming to fit if necessary.

Step 3

Cover and cook on low-heat setting for 6 hours or on high-heat setting for 3 hours.

Step 4

Remove turkey from cooker; slice turkey. Arrange turkey slices on a serving platter. Spoon onion-tomato mixture over turkey. Sprinkle with cheese (if desired) and serve with Greek Cucumber Sauce.