Pasta With Slow Roasted Beef and Tomato Sauce

Cook pasta in plenty of boiling water according to package directions. Drain and return to pot. While pasta is cooking, heat meat and sauce, tomatoes, tomato paste and red pepper flakes in a 2-quart sauce pan over medium heat. Bring to a boil. Immediately reduce to a simmer and cook until flavors have come together, about 12 to 15 minutes. Combine sauce and noodles, toss to coat evenly. Divide pasta and sauce among serving bowls. Serve immediately.