NEW YORK (Standard&Poor's) April 6, 2009--Standard&Poor's Ratings Services said today that it assigned its 'BBB' senior unsecured rating to Omaha, Neb.-based ConAgra Foods Inc.'s $500 million 5.875% notes due April 2014 and $500 million 7% notes due April 2019. These notes will be issued off of ConAgra's previously filed Rule 415 shelf registration for debt securities. The company intends to use the net proceeds from the offering to purchase up to $600 million total principal amount of three series of its outstanding senior notes in cash tender offers that it commenced today. The offers to purchase consist of two separate offers, with one offer to purchase any and all of the $300 million 6.7% senior notes