Chopped Salad (tuna or veg)

• 200 g tin tuna in olive oil
• 1 red capsicum (bell pepper), diced
• 1 Lebanese cucumber, diced
• 400 g tin chickpeas, drained
• 1 cup corn, frozen
• .5 iceberg lettuce, shredded
• .25 cup parsley, roughly chopped
• .5 red onion, finely chopped
• 2 tbsp cottage cheese
• 2 tsp red wine vinegar
• 1 tsp dijon mustard