Stick a fork in him — the food vendor who charged tourists $30 for a hot dog was canned for the sausage scam, his boss revealed Thursday.

Ahmed Mohammed — whose fluctuating frank prices ranged from $3 to $30 near the World Trade Center — was also fleecing owners of the food cart, his boss Abdelalim Abdelbaky, 22, told The Post.

“I fired him over it yesterday after I watched the news,” said Abdelbaky, whose father owns the food cart and vending license.

“He told me he charged the people $2 a hot dog. He lied to me.”

Abdelbaky said the vendor pocketed the extra dough — and left his family with hundreds of dollars in fines to pay off.

On Wednesday, Mohammed was slapped with three food-vending citations — after WNBC caught him on camera overcharging customers with accents, police sources said.