Thai lamb salad with spicy dressing

Name: Thai lamb salad with spicy dressing
Ingredients: 2 red chillies, 1 chopped, 1 finely sliced (for garnish); 4 garlic cloves, crushed; 90g/3¼oz root ginger, roughly chopped; 2 tbsp palm sugar (or light brown sugar); 6 tbsp soy sauce; 4 tbsp fish sauce; 300g/10½oz cooked leftover lamb, fat left on, cut into thick slices; ½ cucumber, cut in half lengthways, thinly sliced on the diagonal; 100g/3½oz fresh peas; 100g/3½oz sugarsnap peas, sliced lengthways; 75g/3oz beansprouts; 6 spring onions, trimmed, sliced on the diagonal; 3 tbsp roughly chopped fresh mint leaves; small handful coriander sprigs; 2 limes, juice only; 25g/1oz pea shoots