"TombStone" and "DiGiorno" brand frozen pizzas, owned by Kraft, sit in the frozen foods section of a Shaw's supermarket in Medford, Massachusetts January 5, 2010. Kraft sweetened its bid for Cadbury by increasing the proportion of cash it is offering, selling its North American frozen pizza business to pay for it. REUTERS/Brian Snyder (UNITED STATES - Tags: BUSINESS FOOD)