KUALA LUMPUR, Sept. 27 -- Rendang is synonymous with celebration, a dish so deeply rooted in family tradition that many can't imagine Raya without it.

For married couple Aisya Jabaruddin and Akmal Ali, however, rendang became the starting point of a different kind of tradition - one that replaces beef or chicken with mushrooms, without losing any of the richness or soul of the dish.

"I've been making my own rendang ever since I went vegan because I couldn't find anything that tasted like my mum's," Aisya explains.

"It was something I cooked every Raya, and over time it became a tradition. Eventually, I started sharing it with friends and that turned into something bigger. I started Mushroom Lah with my husband Akmal because I wanted to...