Outback Steakhouse will be offering FREE Kids Meals on Halloween (with the purchase of an adult entree).
From the fine print in the email that I received, there is a limit of one child's meal per adult entree, maximum of two per visit. The deal is valid on dine-in or take out. The deal is valid all day on Thursday, October 31, however most Outback locations are only open for dinner on weekdays. My location opens at 4p on Thursdays, including Halloween.
You can find an Outback near you with their locations directory.