Lentil and bean burger

Name: Lentil and bean burger
Ingredients: 1 cup (200g) red lentils; 420 gram can four-bean mix, rinsed; 1 egg; 4 green onions, chopped coarsely; 2 tablespoon fresh coriander, coarsely chopped; 1/2 cup (35g) stale wholemeal breadcrumbs; 4 hamburger buns; 8 butter lettuce leaves; 40 gram bean sprouts; 40 gram snow pea sprouts, trimmed; 1 (130g) lebanese cucumber, sliced; 2 (300g) medium tomatoes, chopped coarsely; 1 (80g) small brown onion, chopped finely; 1 clove garlic, crushed; 1/3 cup (80ml) sweet chilli sauce; 2 tablespoon malt vinegar