Spanish omelette

Name: Spanish omelette
Ingredients: 2 large potatoes (600g), sliced thinly; 2 medium brown onions (300g), sliced thinly; 155 gram green beans, trimmed, chopped coarsely; 1 medium red capsicum (bell pepper) (200g), chopped coarsely; 8 eggs; 1/4 cup (60ml) skim milk; 1/4 cup fresh flat-leaf parsley, coarsely chopped; Salsa; 1 large tomato (220g), seeded, chopped finely; 2 lebanese cucumbers (260g), seeded, chopped finely; 1 small red onion (100g), chopped finely; 2 long green chillies, chopped finely; 1/4 cup (60ml) lemon juice; 2 tablespoon fresh coriander (cilantro), finely chopped