Cook pasta as directed on package. Drain and rinse.
Chop (or mince) garlic and olives; set aside.
Heat olive oil in a skillet over medium. Once hot, add garlic and olives. Cook for 1 minute and then add tomatoes. Cook for 5 minutes.
Drain tuna and add to skillet, along with pasta and black pepper. Toss together and heat through.
Serve with pineapple chunks on the side.
Calories: 379kcal | Carbohydrates: 57g | Protein: 16g | Fat: 10g | Saturated Fat: 1g | Cholesterol: 13mg | Sodium: 206mg | Fiber: 5g | Sugar: 12g