Spicy sweet potato fishcakes with charred greens

Name: Spicy sweet potato fishcakes with charred greens
Prep time: 35 min
Cook time: 1 h 30 min
Total time: 2 h 5 min
Cuisine: Asian
Ingredients: 3 large or 4 medium (520g) sweet potatoes; 1 tbsp white miso paste; thumb-sized piece of ginger finely grated; 2 red chillies finely chopped; 1 garlic clove crushed; ½ tsp ground cumin; ½ lemon juiced; ½ small bunch of coriander chopped; 2 skinless salmon fillets (250g), finely chopped; 2 skinless firm white fish fillets (250g), finely chopped; 2 tsp smoked paprika; 50g dried breadcrumbs; 50g plain flour; 2 eggs beaten; 1 tbsp vegetable oil plus 1 tsp; 400g long-stem broccoli; 1 tbsp soy sauce; 1 tbsp honey; lemon wedges, to serve (optional)