Peel the garlic cloves. Wash the chicken fillets and dab them dry. Heat 1 tablespoon of oil in a large frying pan. Fry the meat until golden brown all around. Season with salt and pepper and remove. Briefly fry the garlic cloves in the hot frying fat, remove.
Preheat oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer). Wash the rosemary, dab dry and remove the needles. Wash the potatoes thoroughly and cut them into coarse cubes with the skin on.
Mix with rosemary, olives, garlic and 4 tablespoons of oil, season with salt and pepper.
Put the potato mix in a large casserole dish or fat pan (deep baking tray), place the chicken fillets on top. Bake in a hot oven for about 40 minutes. Wash lemon hot, dry and cut into slices.
Put the lemon wedges in between about 15 minutes before the end of cooking time. Tomato salad tastes good with it.