Pizza-topped chicken with broccoli smash

Name: Pizza-topped chicken with broccoli smash
Prep time: 20 min
Total time: 20 min
Cuisine: European, Italian, Mediterranean
Ingredients: 2 skinless chicken breast fillets; ½ x 30g pack basil, leaves picked; 5 tbsp pizza sauce; 75g chestnut mushrooms, sliced; a handful of cherry tomatoes, halved; 50g ready-grated mozzarella; 25g Parmesan, grated finely; 3 tsp extra-virgin olive oil; 1 x 335g head broccoli, roughly chopped; 1 garlic clove, crushed