Mediterranean fish stew

Name: Mediterranean fish stew
Prep time: 30 min
Cook time: 55 min
Total time: 1 h 25 min
Cuisine: European, Mediterranean
Ingredients: 1 tbsp olive oil; 0.5 whole small onion, finely chopped; 1 clove garlic, crushed; 0.5 whole small red pepper, finely chopped; 100g carrot, peeled and finely chopped; 50g courgette, finely chopped; 150g potato, diced; 175ml very low salt vegetable stock; 50ml milk; 200g fillet of white fish and/or salmon, cut into chunks; 50g sweetcorn; 0.5 tbsp parsley, finely chopped (optional)