Remove the paksoi leaves from the stalk, wash and drain. Cut white stem ends into strips, green into large pieces. Wash, clean, quarter and seed the tomatoes. Cut the flesh into pieces.
Peel and finely chop the onion. Cut cheese rolls into 4 thalers each. Wrap 1 slice of bacon around each roll. Heat olive oil. Fry onion and white stalk strips in it. Add remaining paksoi and tomatoes.
Season with salt and pepper. Deglaze with broth, bring to the boil briefly. Fold in olives. Pour into 4 ovenproof moulds, spread 2 cheese taler on each. Grind pepper on top. Gratinate in the preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: level 4, better under the hot grill) for about 5 minutes.