Wash the poulard, cut into 8 pieces and dab dry. Heat the oil in a pan. Fry the chicken parts on all sides until golden brown. Season with salt and pepper. Clean, wash and chop the greens.
Onions peel and quarter. Wash the lemon and cut into slices. Put chicken parts and prepared ingredients in a roaster and season with salt and pepper. Fold in bay leaves, rosemary and lemon wedges.
Cover and braise in the preheated oven (electric cooker: 225 ° C/ gas: level 4) for about 30 minutes. After 15 minutes, deglaze with 1/4 litre water. Add olives just before serving. Serve with sliced baguette rolls.