"A good friend gave me this recipe and I've since found it to be so tasty and best of all, easy! My family loves it and it doesn't take long to make at all! It's perfect over angel hair pasta with garlic bread on the side! Double the recipe for larger parties or just for leftovers!"
Heat oil and butter in a large saucepan over medium heat. Saute onion and garlic until onion is tender and translucent. Stir in crushed tomatoes, diced tomatoes and sun-dried tomatoes. Simmer 5 minutes on medium heat. Add peppers, black olives, green olives and capers. Simmer 15 to 20 minutes on low heat, or until sauce has thickened.