Serving Illinois prisoners two meals a day instead of three was supposed to save the state money.
But Corrections Department officials told lawmakers this week it will cost $200,000 per prison to implement the "brunch" program.
Corrections spokesman Tom Shaer now says the main goal is to reduce inmate movement - a cost savings - and avoid serving breakfast in dark morning hours.
Prisons in Robinson and Galesburg have begun the program and the Mount Sterling lockup will follow soon. Shaer says the rest of the two dozen state prisons could follow after Jan. 1.
Prison director S.A. "Tony" Godinez said in early 2012 it would save $2 million in the following year. Shaer says there might be savings down the line but security is the top concern.