The boys, who opted for a healthy nutritious meal at Gyms Kitchen in Gants Hill, Essex, bumped into James' Arg' Argent, Lewis Bloor, Abigail Clarke and Lauren Pope at the restaurant - and no, they weren't filming either!
Mario saw the funny side, telling fans on Twitter: "Turned up to @gymskitchen and it's a Towie reunion! @charlessims_ @lewis_bloor @abigail_clarke all here! #saveitforthescene!!!!!"
The Italian tailor later added: "And now @LaurenPope hahahaha! #towietakesovergk."
Arg posted a photo of himself, Mario and Charlie on Twitter, saying: "Popped into @gymskitchen and who do I see... @Mario_Falcone @charlessims_ Can't wait to tuck in! X."
Earlier in the day, Arg spent some time catching up with co-star Joey Essex, who will be taking a break from TOWIE's upcoming series to focus on his new reality show.
Arg tweeted: "SELFIE!!! Me and @JoeyEssex_ reunited today! Laughed so much my tummy hurts! #GoodTimes x."
The cast of The Only Way Is Essex are expected to kick off filming for the brand new 11th series towards the end of this week, and fans are in for a treat this year as show bosses announced plans to air TOWIE for a total of three series.
Who are you most looking forward to seeing in TOWIE's new series? Tell us below, as the best comment from across the website each week wins £50!
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