In this pilot single-case study, we evaluated the effects of using LEGO® as a tool for students identified with disabilities to improve their expressive writing performance. We applied a simple ABA reversal design to test whether the intervention was effective with four seventh graders. Social validity data were also obtained. Findings indicate that all four participants received a substantial benefit from playing with LEGO® as they tried to come up with ideas for their essays. The length of texts considerably increased once they started using LEGO® materials. Social validity feedback from the students suggests that, overall, they held a positive view of the intervention, but they also voiced some critical opinions. This paper ends with a discussion of limitations and possible further extensions to the novel approach presented.