In a large skillet, cook beef over medium heat until no longer pink; drain. Remove; set aside and keep warm.
In the same skillet, combine the water, tomatoes, green pepper, onion and seasonings; bring to a boil. Reduce heat; simmer, uncovered, until vegetables are tender. Stir in rice; cover and remove from the heat. Let stand for 5 minutes. Stir in beef; return to the heat and cook until heated through.