Ingredients

• 4 large potatoes (about 2 lb/1 kg)
• 2 cans solid white tuna drained
• 1/2 cup diced roasted or fresh sweet red pepper
• 1/4 cup sliced pitted black olive
• 1/4 cup light mayonnaise
• 1/4 cup light sour cream
• 1 stalk celery diced
• 1/4 cup diced red onion
• 2 tablespoons chopped fresh parsley
• 2 tablespoons lemon juice
• 1/2 teaspoon salt
• 1/4 teaspoon pepper