Concept Burger opens in Wolli Creek

"I read somewhere there are now 160 burger franchises in Australia, it has gone a little crazy," says Tomislav Martinovic, one of a posse of upper-crust Australian chefs who've found themselves toasting buns.

Martinovic swapped molecular gastronomy at the hatted Tomislav restaurant for life as a consultant chef, earning a reputation for his creations at Five Points Burgers in North Sydney along the way. He's back at it, spotted at Wolli Creek, near Tempe, with a spatula in hand.

"It opens next week, it's called Concept Burger. The owners [Sergio Spagnuola and Coco Liang] wanted burgers from around the world. So the Japanese burger, for instance, will have fish tempura and watermelon radish," he says.

Even Martinovic has been surprised by Australia's burger obsession. "I really thought it'd flatten out a few years ago, but when you think of all those franchises and every pub doing a burger, it has been quite incredible," he says.

Open for dinner Tuesday to Sunday; lunch Saturday to Sunday

9-11 Arncliffe Road, Wolli Creek, 02 9597 4184, conceptburger.com.au