Hot smoked salmon salad with a chilli lemon dressing

Name: Hot-smoked salmon salad with a chilli lemon dressing
Ingredients: 500g new potato, halved; 200g pack asparagus tips; 250g bag mixed salad leaves (including young beetroot leaves and watercress); bunch each parsley and mint, leaves picked and roughly chopped; 140g radish, thinly sliced; 8 x hot-smoked salmon steaks, skin removed; 4 spring onions, sliced diagonally; 3 tbsp lemon juice; 125ml olive oil; 1 tsp wholegrain mustard; 2 red chillies