Salmon burgers with lemon and herbs

Ingredients

• 2 shallots, finely chopped
• 3 tbsp fresh parsley, finely chopped
• Olive oil, for cooking
• 450 g raw salmon, skin removed
• 180 g cooked quinoa, flaked with a fork
• 1 egg
• 1 egg white
• ½ tsp dried coriander
• 1 tbsp lemon juice
• Salt
• black pepper
• 4 tbsp olive oil
• 2 tbsp water
• 2 tbsp lemon juice
• ¼ tsp salt
• 1 tsp honey
• 4 large handfuls of baby spinach
• 1 small handful of fresh coriander leaves
• ½ red onion, thinly sliced
• 1 cucumber, thinly sliced