Cook the macaroni according to package directions until al dente. Drain and set aside.
In a large skillet or Dutch oven, brown the ground beef and diced onion over medium heat until the beef is fully cooked and the onion is tender. Drain any excess fat.
Season the beef mixture with garlic salt, pepper, chili powder, and hot sauce to taste.
In a large bowl, mash the stewed tomatoes. Add the mashed tomatoes and ketchup to the beef mixture, stirring to combine.
Add the drained macaroni to the beef mixture and stir well to combine.
If the goulash seems too thick, add tomato juice to reach your desired consistency.
Serve hot and enjoy!