Grilled Chicken Pita Wraps

Ingredients

• 4 boneless, skinless chicken breast(s)
• 1 tsp oregano, dried
• 1 tsp dill, fresh, chopped
• 3 tbsp lemon juice
• 1 tbsp water
• 1 tsp vegetable oil
• 1 onion(s), large
• 2 plum tomatoes, chopped
• 1/2 cup English cucumber, chopped
• 4 pita breads
• 1 cup low-fat plain yogurt
• 2 tbsp dill, fresh, chopped
• 1 clove garlic, minced
• 1 tsp lemon juice
• salt, to taste
• pepper, to taste