Lemon pollock with sweet potato chips & broccoli mash

Name: Lemon pollock with sweet potato chips & broccoli mash
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: British
Ingredients: 2 garlic cloves; 2 sweet potatoes (175g/6oz), scrubbed and cut into chips; 2 tsp rapeseed oil , plus extra for the fish; ½ tsp smoked paprika; 2 pollock fillets (about 100g/4oz each); ½ unwaxed lemon; 2 tbsp extra virgin olive oil; 1 ½ tsp capers , rinsed and chopped; 1 tbsp chopped dill; 1 leek , chopped; 4 broccoli spears (about 200g/7oz); 85g frozen peas; handful mint