She became a star of culinary television through programs in which she prepared recipes of German origin, and shared her beliefs and impressions about God, the Church, love, and family.
Seitz hosted Dulces Tentaciones (Sweet Temptations) on the Elgourmet.com channel for several years with great success, as well as shows on América TV.
She wrote a series of cookbooks, including the 2003 bestseller 100 recetas: cocina y meditación (100 Recipes: Cooking and Meditation).
Her childhood was spent between La Pampa and Coronel Suárez, and later in her father's fields in the south of Córdoba Province.
Despite her status as a Catholic nun, in her programs she referred to God in a way unrelated to a specific religion.