Bbq chilli octopus

Name: Bbq chilli octopus
Cuisine: Asian, Middle Eastern
Ingredients: 500g Baby Octopus, cleaned; 2 cloves garlic, finely sliced; 3 small red chillies, seeded and finely chopped; 1½ teaspoons chopped oregano leaves; ¾ cup extra virgin olive oil; 2 red onions; 2 red capsicums, seeded and cut into chunks; Tzatziki; 1 small Lebanese cucumber; 1 clove garlic, crushed; 1 stalk dill, finely chopped; 200g Greek-style plain yoghurt; Salt flakes, to taste; Calamari, Cuttlefish; or Squid; (cut into strips), large green Prawns; (omit the boiling water).