Inclusion Criteria:  History of in situ or invasive breast cancer Have completed breast cancer surgery, adjuvant cytotoxic chemotherapy (as indicated) and adjuvant radiation therapy (as indicated) at least 6-months prior to enrollment Not on active treatment for other cancer for at least 6-months prior to enrollment Currently cancer free Overweight or obese (BMI of 25 kg/m^2 or greater) Have internet access and videoconferencing capability  Exclusion Criteria:  Current use of weight loss medication (OTC or prescription) or participation in behavioral weight loss program Currently participating in a behavioral weight loss program Self-report of alcohol or substance abuse within the past 12-months, including at-risk drinking (current consumption of more than 14 drinks per week) Undergone bilateral mastectomy History of Bulimia nervosa Inability to provide informed consent