H&R Block 3724 Monticello Plaza Dr, O Fallon, MO63368 This H&R Block offers options in state, federal and local tax preparation for individuals or small businesses.…More The office also offers year-round tax audits and assistance. Call the number provided for more information.
B. Halls Family Bar and Grill 3782 Monticello Plaza, O, MO63368 B. Hall's has been serving great food and fun atmosphere for more than a decade. Located at the intersection of Highway…More K and O'Fallon Road, B. Hall's is a great place to hang out with friends, grab a quick dinner or lunch, or grab a few drinks after work.