In a Dutch oven, cook beef, green pepper, onion and garlic over medium heat, breaking beef into crumbles, until meat is no longer pink and vegetables are tender, 8-10 minutes; drain. , Add water, tomatoes, tomato sauce, chili powder, jelly and salt. Bring to a boil. Stir in spaghetti. Reduce heat; simmer, covered, until spaghetti is tender, 6-8 minutes.