(Newser) – "Pink slime" may be too dubious for McDonald's, but apparently the ammonia-treated beef filler is good enough for America's schoolchildren. The US Department of Agriculture is set to give the go-ahead today, allowing schools to use ground beef containing the so-called pink slime, reports ABC News. "That's what upset me. This idea that children are passively sitting in a lunch room eating what the government sees fit to feed them and McDonald's has chosen not to use it, but the government is still feeding it to them," said a Houston-based food blogger who has gotten 220,000 signatures on a petition asking the Department of Agriculture to ban pink slime in school food, according to the AP.