Preheat the oven to 190ºC fan.
Pour the passata into your ovenproof dish. Sprinkle over the garlic granules, onion granules, and Italian herbs – then season with salt and freshly ground black pepper. Give it a good stir.
Arrange the chicken breasts on top of the tomato sauce mixture. Sprinkle the cheddar cheese over the chicken in an even layer, then add the cherry tomato halves – cut side up.
Scatter over the ham, pineapple, and mozzarella, then place in the oven for 25 - 30 minutes – or until the chicken is cooked through, shows no sign of pinkness, and the juices run clear. When your dish is ready, the cheese should be melted and lightly golden. Scatter with basil leaves, and serve.