Dalton Ursulean of Niagara, Wis., pleaded no contest Tuesday in Dickinson County District Court to placing harmful objects in food.
In exchange, prosecutors agreed to mitigate his status as a habitual offender. A no-contest plea isn't an admission of guilt but allows for conviction and sentencing.
On Aug. 25, authorities say Ursulean spit in a sandwich ordered by an officer from the Oscar Johnson VA Medical Center in Iron Mountain.
Assistant Prosecutor Carl Downing said it's likely Ursulean's recommended sentence will be about a year in jail followed by about a year's probation. Sentencing is Nov. 5.