Roast Cod with Ratatouille and Tomato Coulis

Name: Roast Cod with Ratatouille and Tomato Coulis
Ingredients: 1 kg cod steak (large, thick); 30 gr breadcrumbs (fresh, white); 2 tsp parsley (finely chopped); 1 tbsp Dijon mustard; olive oil; sea salt; 2 large onions (diced (2cm)); 2 large red peppers (de-seeded and diced (2cm)); 2 large zucchinis (courgettes) (diced (2cm)); 1 eggplant (aubergine) (diced (2cm)); 4 large plum tomato(es) (chopped); 4 cloves garlic (crushed); 2 tbsp tomato purée; 3 tbsp olive oil; 1 sprig fresh thyme (or rosemary); 200 gr cherry tomatoes (very ripe); 2 tbsp olive oil