Emotion dysregulation (ED) underlies psychiatric symptoms and impedes adaptive responses in autistic individuals. The Emotion Awareness and Skills Enhancement (EASE) program was the first mindfulness-based intervention designed to target emotion dysregulation in autistic adolescents (12-17 years old). This project partnered with stakeholders to adapt EASE for autistic adolescents and adults with co-occurring intellectual disability and autistic elementary-aged children, groups who often benefit from caregiver support in treatment. Over three adaptation phases, we: (1) elicited stakeholder and expert feedback to adapt the original EASE program for autistic individuals with intellectual disability; (2) redesigned the adapted manual and expanded the target age range following a small "micro-trial" with a sample of autistic adolescents and adults with intellectual disability (n = 6); and (3) demonstrated feasibility and acceptability of a caregiver-client team-based approach (EASE-Teams) in a sample of 10 autistic individuals with and without intellectual disability (ages 7-25) and their caregivers. EASE-Teams was both acceptable and helpful to families. Significant improvements were noted in participant emotion dysregulation, psychiatric symptoms, and caregiver stress from their child's dysregulation. Findings suggest that EASE-Teams may be appropriate for heterogeneous developmental and cognitive needs. Future research to establish efficacy and refine EASE-Teams with community providers is warranted.