Cheeky Chickpea Salad

• 400 g tin chickpeas, drained
• .5 red onion, thinly sliced
• 1 Lebanese cucumber, diced
• 2 tbsp extra virgin olive oil
• 1 tbsp dried oregano
• 1 avocado, pip removed and mashed
• 2 wholemeal pita pockets
• 100 g coleslaw mix