Healthy school lunch ideas for a nut-free environment Submitted by Sarah Brien on Fri, 09/07/2012 - 13:41 A friend from the US who recently moved to Canada was surprised to find out about our nut-free policy at schools. I was equally shocked to find out that where she taught in the US, the kids with allergies sit separately from the other children who are allowed to bring in peanut butter and the like. Wouldn’t those sticky peanut butter fingers find their way throughout the school? The surprise turned to semi-panic at the thought that peanut butter is now never an option for her son’s school lunch. The conversation moved to what I pack for protein in my kids’ lunches.