Beverly Surratt, 28, Juwann Keaire Williams, 18, and Marquae Yoakum, 20, each face felony counts of conspiracy to commit murder, two counts of attempted murder and six counts of assault with a semiautomatic firearm.
Surratt appeared in court Monday. The other two suspects remain at large, authorities said.
Prosecutors said she got into an argument with another shopper in line at a Superior Grocers in the 10200 block of South Avalon Boulevard.
She left the market and went to a home and met with Williams and Yoakum, prosecutors said.
They allegedly went to the store and fired a dozen shots. Six people were injured but survived.