A Texas company is recalling 30,000 cases of fresh-cut vegetable products from eight retail chains — including Wal-Mart, QuikTrip and Publix — after a random sample tested positive for Listeria monocytogenes. recalled Country Fresh fresh-cut vegetablesCountry Fresh LLC of Conroe, TX, distributed various combinations of 45 different fresh-cut vegetable products to retailers in nine states: Alabama, Florida, Georgia, Kentucky,…