Bourdeto alla Pescanova

Ingredients

• pack of Pescanova cod
• olive oil
• large onions, cut into thick slices
• of tomato paste soup
• garlic, finely chopped
• medium potatoes, cut into round slices
• carrots, sliced
• large tomatoes, grated on a grater
• half a liter of water
• Salt
• pepper
• bay leaves
• A little bay leaf