Framed on Self-Determination Theory, this study sought to examine the interplay between parents' and adolescents' need satisfaction and need frustration, as well as to investigate the potential mediating role of autonomy-supportive and psychologically controlling parenting. Whether parents' dispositional mindfulness moderated the relation between parental need frustration and parenting was also investigated. Participants were 213 clinically referred adolescents between 12 and 17 years (M age = 14.36; 55.9% girls) and 225 parents (85.3% mothers). Findings from structural equation models revealed a bright and a dark pathway linking parents' and adolescents' need-based experiences through parenting. Specifically, parental need satisfaction was positively related to autonomy-supportive parenting, which, in turn, contributed to greater adolescents' need satisfaction. In contrast, parents' need frustration yielded a positive association with psychologically controlling parenting, which, in turn, positively related to adolescents' need frustration. Latent moderation analyses also indicated that parents' mindfulness played a role as a moderator of the relationship between parental need frustration and psychological control; the association was attenuated when parents reported higher levels of mindfulness. Implications for the promotion of positive parenting among families of adolescents with mental health problems are outlined.