Teaching is a stressful profession given teachers' competing demands. Due to COVID-19, teachers struggle to balance maintaining a safe classroom environment and the traditional child-directed focus of early education. The purpose of this study was to examine the effectiveness of an adaptation of Infant/Early Childhood Mental Health Consultation (IECMHC) on reducing teachers' stress and examine associations between teacher stress and classroom practices. Measures were collected at baseline (T1) and 6-months post-intervention (T2) using the Childcare Worker Job Stress Inventory, an observational measure of classroom practices (Health Environment Rating Scale), and teacher-child interaction quality (Classroom Assessment Scoring System). Regression analyses revealed that teacher-reported Job Resources were associated with higher Classroom Organization at T2. Findings suggested that providing mental health consultation may be an important first step in improving quality classroom practices, particularly those practices that support children's social-emotional and behavioral development.