Add beef and water to a large pot (4-quarts or more). Bring to a simmer, use a spoon to break the ground beef into little pieces. Continue cooking for 30 minutes. Add in remaining ingredients and mix well to combine.
Cook uncovered on low heat for 3 hours, stirring occasionally. Add water as needed if chili becomes too thick.
Serve chili over cooked spaghetti and top with cheddar cheese and oyster crackers.