Last night he opened his latest restaurant, the 8,000sq ft Fade St Social.
But along with his nearby eatery, Rustic Stone, and a starring role in TV's MasterChef, it looks like chef Dylan McGrath is going to be even busier in 2013.
The Diary can exclusively reveal that the makers of MasterChef, Irish TV company Screentime ShinAwil, are in negotiations with a UK broadcaster about a cookery show starring McGrath.
"Cooking is the new rock'n'roll. There is an insatiable demand for new TV chefs on British TV, and Dylan McGrath, for them, is brand new and a huge discovery," Larry Bass, MD of Screentime ShinAwil, told The Diary.
We hear that the format could feature the the 35-year old Michelin-starred chef mentoring junior chefs on their kitchen skills.
We hope he's received more sympathetically than when Dylan featured with his then workers in former establishment Mint in Ranelagh for 2008 RTÉ documentary Pressure Cooker.
It was an outing which saw rival chef Patrick Guilbaud brand Dylan "sad" for his shouting and swearing outbursts at staff.
Since then, MasterChef director Linda McQuaid has made sure viewers have seen a kinder, cuddlier Dylan dealing with novice foodies in the past two seasons of the RTÉ series.
Said Dylan: "I'm a lot tamer than people think. It's only if you overcook sea bass on me you have a problem. I have definitely mellowed but if the pressure of the kitchen comes on again. . ."
Whatever about the pressure of the kitchen, what about the pressure of appearing in a third season of MasterChef, running two restaurants in Dublin while jetting back and forth to work for British TV?
Said Larry Bass: "I don't think any of this is going to present a problem for Dylan. Just look at how many TV shows and restaurants Jamie Oliver has."
And there'll be no time to be a publican, either -- which will be good news for rival businesses on Fade Street who had objected to the chef's new eatery being granted a seven-day pub license, which permits the sale of pints and shorts as well as wine.
However, the drinks flowed at Fade St Social on Tuesday night when a court accepted Dylan's word that he remained first and foremost a restaurateur and had no intention of running his restaurant as a public house.