Wash and halve the cherry tomatoes. Peel garlic and chop finely. Drain tuna on a sieve and cut into smaller pieces. Cook the pasta in boiling salted water for about 10 minutes. In the meantime heat oil in a pan. Sauté the tomatoes for about 2 minutes.
Add garlic and tuna and fry for about 2 minutes. Add capers. Season with salt and pepper. Wash the basil and, except for a few leaves for garnishing, cut it into strips and place them in the pan. Drain the pasta and stir into the tomato and tuna mixture. Arrange on a plate and garnish with basil leaves