How to turn a Mono<List<T>> into a List<Mono<T>>? I'm trying to build a function that turns a Mono of a List into a List of Monos The function would for instance receive a Mono and return a List. To be clearer, the function I'm looking for should look something like this: fun process(list:Mono):List {...} I'm using Kotlin here but could be Java I've tried several things not worth listing but here's my best attempt which is not working (and I have no idea why) fun process( monoListOfAny : Mono) : List = monoListOfAny.flatMap {...