Clean and wash the broccoli and cut it into small florets. Steam in little boiling salted water for about 5 minutes
Peel and chop the onion. Fry in hot oil until translucent. Add ground pork and fry until crumbly. Add the tomato pieces and cream. Season with pepper and salt if necessary
Drain the mozzarella and cut into slices. Put broccoli and sauce in 4 small or 1 large greased casserole dish. Cover with mozzarella. Bake in the preheated oven (electric cooker: 225 °C/recirculating air: 200 °C/gas: level 4) or under the hot grill for 5-7 minutes. Wash the tomatoes and remove seeds if necessary. Dice the fruit flesh. Sprinkle over the broccoli pans just before serving