Ingredients

• 2 tablespoons extra virgin olive oil
• 2 onions, finely diced
• 3 russet potatoes, peeled and cut into 2-inch cubes
• 2 green bell peppers, deveined and chopped
• 2 garlic cloves
• salt
• 8 cups fish stock or 8 cups bottled clam juice
• 1 cup dry white wine
• 6 ounces fresh tomatoes, peeled, seeded and diced or 3/4 cup diced canned tomato
• 2 lbs fresh fatty tuna, cut into large pieces (preferably from the belly)
• fresh ground pepper
• chopped Italian parsley

Instructions

1. Heat the oil in a large heavy saucepan over medium heat. Add the onions. Cover and cook, stirring occasionally, until translucent but not colored, about 10 minutes.

2. Add the potatoes, bell peppers and garlic. Cook, stirring for 10 minutes. Season lightly with salt.

3. Add the fish stock and wine. Simmer until the potatoes are tender and the stew has thickened slightly, about 10 minutes.

4. Add the tomatoes and simmer for 10 minutes.

5. Add the tuna, pushing it down into the stew with a spoon. Cover, remove from heat and let stand until tuna is cooked to desired doneness, about 5 minutes for medium-rare. Season with salt and pepper. Ladle into bowls, sprinkle with parsley and serve.