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.

He was ticketed for being too close to a crosswalk, having items outside of his cart and failure to list prices — which is how he got away with the outrageously high prices in the first place, police sources said.

The fines could total up to $1,500 — a bill the owners of the cart must foot, Abdelbaky said.

The food-cart chief also has a beef with his ex-employee because he’s lost customers, he said.

“Nobody would give him a job and he came to me. [But] I lost money — and I lost some customers,” he said, adding he even let Mohammed stay rent-free at his home in Jersey City.

“I lost money now, and I lost some customers, so I have a lot of losses,” he said.

Mohammed targeted people with accents near Greenwich and Albany streets, according to NBC.

In one case, he tried to charge a New Yorker with a French accent $15 for a pretzel and a hot dog.

In another, he asked $30 for a hot dog and a Dr Pepper.

Mohammed couldn’t be reached for comment on Thursday.