Wash the potatoes and boil in water for 25-30 minutes. Peel onion and garlic, dice finely
Heat the oil in a pot. Sauté onion and garlic in it. Add spinach without defrosting and pour on 100 ml water. Cover and heat over medium heat for about 15 minutes. Season with salt and pepper
Wash and finely dice the tomatoes. Cut cheese into 12 slices. Quench the potatoes, peel them, cut them in half lengthwise
Place the potato halves in 4 small greased ovenproof dishes or in a large casserole dish. Spread spinach on top and sprinkle with tomato cubes. Place cheese slices on top. Bake the potatoes in a preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas:
Stage 3) Bake for about 15 minutes until golden brown