"Everything is made from scratch," she said. "I don't open a package, a can, nothing."
"I taught myself to cook low fat and healthy, not that greasy," she said.
Seiler, fondly known to her employees and customers as "Christa," has 30 years of experience working as a chef in a hotel in Germany and later with a catering business in Baltimore after she moved to the United States in 2008.
Several years after her arrival in America, she decided to leave the catering business.
"I had to make a decision in 2011 with my husband (Dihmar). Do we go back to Germany? Do I have to find something (on my own)?" she said.
"The owner, he's the best guy ever," Seiler said. "We work so perfectly together."
She hosted the first German dinner on Sept. 26, 2011, and business has been good ever since.
Noreen Hamner is among the endeavor's loyal regulars.
"If I'm only going to choose one meal (to eat out), I'm going to choose this," Hamner said. "The salads and the goulash are my favorites."
Hamner, a former Catonsville resident who now lives in Linthicum Heights, said her husband heard whispers of a new German restaurant one day at the Catonsville YMCA, shortly after Seiler began her business.