On the season premiere of Tori & Dean: Home Sweet Hollywood, she and husband Dean McDermott hit a steakhouse with their two kids, Liam, 3, and Stella, 1 1/2.
There, they're presented with a challenge: If they can eat a 72 oz. piece of meat in less than an hour, it's free.
While McDermott, 43, has no trouble chomping away, Spelling, 36, struggles.
"I'm stuffed!" she exclaims. "I don't like this game!"
She winds up cheating, stuffing meat down her tank top.
Watch her hilarious antics (above) -- and tune into the new season of Tori & Dean: Home Sweet Hollywood, premiering April 5 at 10 p.m./ET on Oxygen!