Cowboy caviar - Good Food Middle East

Ingredients

• 400g can black beans, drained and rinsed
• 200g can sweetcorn, drained, or use frozen (defrosted if frozen)
• 2 large tomatoes, quartered, deseeded and finely chopped
• 1 small red onion, finely chopped
• 1 pepper (any colour), deseeded and finely chopped
• 1 large avocado, halved, peeled, stoned and finely chopped (optional)
• small bunch of coriander, chopped (optional)
• 3 tbsp olive oil
• 1 lime, juiced, or 2 tbsp red wine vinegar
• tortilla chips, to serve (gluten-free, if needed)