In the spring of 1977 Ginny Callan opened the Horn of the Moon Café in Montpelier, Vermont. The café serves fresh baked breads from early morning till evening. For lunch, hot soups are offered on cold days and salads made with locally grown, organic vegetables, are served on warm summer days. Because of high quality cooking, the freshness of the ingredients and the unique appeal of the recipes, The Horn of the Moon Café quickly became one of Vermont's best known vegetarian restaurants.

In addition to running the popular vegetarian café, Ginny teaches cooking classes and is active in local politics.