There are some different options available.
Health Partners: You will have to log in to Health Partners with your own username, but once you’re on the site, if you select the “Healthy Living” – “Health Information Library” and under their Tools – there’s a Weight Management page that has Healthy Eating as a section, where you can select some different topics and learn more through them.
Sand Creek (EAP) – Worklife Wellness (login is duluthmn) – Go to the Healthy Eating tab, then select from there the different e-learning or webinars and articles.
Outside of those two, there are sites that offer free courses, though some may not be as reputable as others…The Academy of Nutrition and Dietetics has some valuable information (though not technically online courses) : https://www.eatright.org; American Heart Association
There are some free courses here as well: https://www.edx.org/learn/nutrition