Creamy Tuna Wraps

Ingredients

• 1/2 cup low-fat plain Greek yogurt
• 2 tsp cold water
• 1/4 cup finely chopped red onion
• 1 large clove of garlic
• 2 tbsp chopped fresh parsley
• 1 tsp fresh lemon juice
• sea salt
• freshly cracked black pepper
• 2 cans cans of tuna in olive oil
• 1 large tomato
• generous handful shredded iceberg lettuce
• large flour tortilla
• tuna mixture