Tray Baked Cod with Mediterranean Vegetables

Name: Tray Baked Cod with Mediterranean Vegetables
Ingredients: 700 g new potatoes (organic, washed ); 460 g runner beans (organic, trimmed and sliced lengthways); 250 g cherry tomatoes (organic, halved); 160 g black olives (pitted, drained, organic, fairtrade); 2 tbsp olive oil (organic, fairtrade); 800 g white fish fillets (about 200g - 225g each); 10 g fresh basil leaves (organic, torn); 1 dash salt; 1 dash black pepper (organic, fairtrade, freshly ground); 2 lemons (organic, fairtrade, halved)