Tuna steaks with salsa rossa

Ingredients

• 2 tbsp olive oil
• 2 tsp red wine vinegar
• 4 tuna steaks ((about 2 cm thick))
• 2 red peppers (halved lengthwise and deseeded)
• 12 oz tomatoes (vine-ripened, peeled and diced)
• 1 small red onion (finely chopped)
• 1 red chili pepper (deseeded and finely chopped)
• 1 large garlic clove (finely chopped)
• pinch ground cinnamon
• pinch sugar
• 5 oz thin green beans (halved)
• 1 tbsp water
• 1/3 cup pitted black olives (halved)
• 1 tbsp fresh mint (chopped)
• 12 fresh basil leaves (roughly torn)