Following his training, Mangan persuaded Michel Roux at the 3 Michelin Star Waterside Inn London to take him on.
Mangan's most recent venture includes the transformation of his wine and tapas bar MOJO on Danks Street in Waterloo into the neighbourhood eatery launched in February 2018, Luke's Kitchen.
Mangan operated Sydney CBD-based glass brasserie from 2004 to 2024, which underwent a $6 million makeover in 2005 with New York architect Tony Chi heading interiors.
The products includes spices like BBQ, Cajun, Dukkah, Za'atar, Curry and Moroccan, Extra Virgin Olive Oil and infusions like Garlic, Lemon, Lemon Myrtle and Truffle and Vinegars including Balsamic, White and Red Wine Vinegar.
[10] In 2005, Mangan co-founded the Appetite for Excellence Awards program, which supports aspiring chefs, waiters and restaurateurs in Australia.