Open the Meal Train page and click the Make Changes* button, then click the Add/Edit Main Photo button.
Pro tip: Landscape oriented photos, where the width is greater than the height, work best. Uploading a landscape photo, or cropping a portrait photo into landscape are usually the best options. If the photo is not landscape, the system will attempt to auto-crop the center of the photo, cutting off portions of the top and bottom.
If you have a photo editing tool, and wish to use exact dimensions, then 600 pixels wide and 400 pixels high are ideal.
*Not seeing the Make Changes button? Please make sure you are signed in with the same email address listed as the organizer or recipient of the Meal Train page.