Black Bean Taco Bowl

• 1 tbsp olive oil
• 1 large brown onion, diced
• 400 g tin black beans, rinsed
• 1 cup corn, frozen
• 2 tbsp Mexican spice mix
• 2 wholegrain wraps
• 1 Lebanese cucumber, diced
• 1 baby cos lettuce, shredded
• 200 g cherry tomatoes, halved
• 1 avocado, smashed
• .5 cup Greek yoghurt