Avotilla - Australian Avocados

Ingredients

• 3 avocados, cut into 1cm pieces
• ½ red onion, finely chopped, plus extra 2 tbs for filling
• 1 long fresh red chilli, deseeded, finely chopped
• 1/2 cup fresh coriander, coarsely chopped
• 2 tbs lime juice
• 400g can black beans, rinsed, drained
• 3 tomatoes, deseeded, chopped (see tip)
• 1 cup thawed frozen (or drained canned) corn kernels
• 2 cups cooked brown rice
• 8 large tortillas
• Corn chips, to serve