The radiation tainted beef from a Minamisoma City farm made it out to at least 11 prefectures including Tokyo and Osaka, and some of the radioactive beef has been consumed.[1,2] As per the Japan Times:
...NHK World: Fukushima Prefecture to inspect all cattle farms
The farm shipped the six cows between May and June, according to the Tokyo Metropolitan Government. Their beef was distributed to Tokyo and Shizuoka, Osaka, Kanagawa and Ehime prefectures. It was also distributed to dealers in Hokkaido, Aichi, Tokushima and Kochi.
According to Aichi Prefecture, 5.9 kg of meat was shipped to a grill eatery in the prefecture from a Tokyo processing plant and 3.15 kg of that meat had been consumed.
Hokkaido said one cow's worth of meat was consumed in a restaurant in Chitose.
The meat was also sold at a supermarket chain in Tokushima and Kochi prefectures.[2]
...
Typically local governments are expected to do testing and ensure food safety. Previously, only the radiation level on the outside of cattle was checked, which means that, hypothetically, if the outside of the animal had been scrubbed clean it could have passed the inspection even if the meat itself exceeded the 300 becquerels/hour safety limit. The amount of beef able to be tested is about 1 percent of the total. However, the ministry of agriculture just recently launched its own testing of farms in Fukushima Prefecture, which will include all farms (the total number is about 260) which raise beef cattle and are in evacuation areas.[2]
NHK World: On-site inspection of cattle farmers begins
[1] Meat of 6 cows fed radioactive straw reaches 11 prefectures, Kyodo News via Japan Today
[2] Radioactive beef already sold, eaten, The Japan Times
