They have a new gluten free specific menu that is great. The server (Madison?) was fantastic. Wonderful experience for a celiac.
My wife is the Celiac, and we've eaten here a few times without any problems. Her Go-To at many restaurants is often the Salmon, and Minerva's does a good job. I love their salad, and it's fine (GF) if you inform them if the gluten allergy - they just bring it without the croutons. May have to check the dressings, and use the oil-based. No problems at the Sioux City or Yankton restaurants.