2 lbs. rigatoni, cooked according to package directions
In a heavy stockpot, heat the butter and olive oil over medium heat. Add the ground beef and pork, season with salt and chili flakes, and cook until browned all the way through. Use a slotted spoon to remove the meat to a bowl and set aside. Add the sliced bacon and cook until crispy. Remove the cooked bacon to the bowl with the cooked beef and pork. Drain the fat from the pot, returning 3 TBS of the fat to the pot and discarding the rest.
Lower heat to medium-low. Add the minced garlic, onion, and carrot to the pot and cook, stirring frequently, until onion is translucent and carrot is tender, about 10-15 minutes. Stir in the tomato paste and cook for 2 minutes, then add the red wine and bring to a simmer.
Add the meat and bacon back to the pot, along with the tomatoes, water, and salt and pepper. Bring to a simmer then cover the pot with a lid and simmer for 40 minutes to 1 hour. Remove the lid and continue to simmer until ragu has reached desired consistency. Serve immediately on prepared rigatoni.