Dad's Spaghetti

My dad didn't make up this recipe, but someone's Dad did and they really did a good job. I was a little skeptical because I'm not a fan of tomato soup but this was really delicious and everyone wanted seconds! Makes 6 servings.

1 pound spaghetti
2 pounds lean ground beef
1 onion, minced
1 (6 ounce) can tomato paste
2 (10.75 ounce) cans condensed tomato soup
2 1/2 cups water

Bring a large pot of lightly salted water to a boil. Add pasta and cook for 8 to 10 minutes or until al dente; drain.
In a large skillet over medium heat, cook ground beef with onion until meat is brown. Drain. Return meat mixture to pan with tomato paste, tomato soup and water. Cook, stirring, until heated through and thickened, 5 to 15 minutes. Serve over cooked pasta.