Pollo alla Contadina

Ingredients

• extra-virgin olive oil
  ¼ cup
• (2½ to 3-pound) fryer chicken

  cut into 8 pieces
  1 unit
• salt and pepper
  1 unit
• flour

  for dredging
  1 cup
• baking potatoes

  peeled and cut into ½-inch dice
  2 unit
• red onion

  cut into ¼-inch dice
  1 medium
• cremini mushrooms

  halved
  ½ pound
• rosemary
  1 sprig
• tomato paste
  ½ cup
• dry white wine
  1 cup
• bunch Italian parsley

  chopped to yield ¼ cup
  1 unit