The board also approved giving him notice of the possible cancellation of his contract, he said.
That action signals the possibility that his employment could be terminated sooner than next summer, he said.
News Channel Nebraska first reported Williams wrote a letter to parents on Oct. 17 explaining kangaroo meat was mixed with beef and put into the school's chili by head cook Kevin Frei. Williams apologized to families and said the school will “no way be serving food of this nature again. Period.”
Frei was relieved of his duties by the board of education last week. He said he added the kangaroo meat for its nutritional value and because it’s a lean cut. He also mentioned he approached Williams about adding the marsupial to the chili before he served it on Oct. 11. Williams denied that claim.
The school said the kangaroo meat, which is approved by USDA inspectors, was purchased from food service provider, Sysco.
The school, which is in Potter, has 87 students in grades 7 through 12. The district has a total enrollment of 170 students.
Potter is about 20 miles west of Sidney in the Nebraska Panhandle.
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