Stuffed Tomatoes with Beans and Tuna

Ingredients

• 8 red tomatoes
• 4 scallions, sliced
• 45 ml / 3 tbsp flat parsley, chopped
• 30 ml / 2 tbsp fresh oregano, chopped
• 1 can, 398 ml / 14 oz white beans, drained and rinsed
• 1 can, 198 ml / 7 oz solid light tuna in vegetable oil, drained and flaked
• 12 pitted black olives, quartered
• 125 ml / 1/2 cup olive oil
• To taste salt and freshly ground pepper
• As required sprigs of oregano