Preheat the oven to 400. Place the tomatoes and a baking sheet, drizzle with oil and roast for 6-8 minutes or until tender.
Cook the pasta in boiling salted water per directions. Drain and set aside. Heat the oil in a saucepan over medium heat. Add the garlic and cook for about 1 minute. Add the tuna, olives, vinegar and pasta. Stir to combine and cook for a minute or two. Remove from the heat and stir in the basil and arugula. Season with salt and pepper.
This is a dry pasta recipe, if you would like yours a little more saucy, save some of the pasta water and add it to the pasta.