Nancy Levandowski and Steve Keller tied the knot Wednesday evening, while some well-wishers sat in booths and restaurant patrons ate dinner nearby.
The 53-year-old bride is the food service director at Iowa State University in Ames, while her 54-year-old husband is a salesman for a food company.
Nancy Levandowski says she often ate at Denny's restaurants during college, while Keller says he frequents the 24-hour pancake house while traveling.
The couple was selected from a pool of applicants vying to be the first married at the chapel inside the new restaurant.
Ceremonies at the chapel start at $95, which includes Denny's T-shirts and a Pancake Puppies wedding cake.