thinly spread tomato puree or sauce of your choice over prepared pizza dough bases then scatter the cherry tomatoes cut in half , feta diced , finely chopped oregano leaves , half a green capsicum and a piece of the red capsicum and deseeded and white bits removed sliced very thinly , the bacon cut into medium pieces , break up into chunks or dice the cooked seasoned roast duck breast , baby spinach leaves larger ones torn in half , the peeled and sliced the red onion and cut larger slices into quarters , season well with cracked black pepper , then scatter grated mozzarella cheese over top of all .