Enable saving JSON files to Lakehouse with Dataflow Gen 2, not just tables

I am pulling data from REST API source with Dataflow Gen 2.

One of the Columns in the Query invokes a function with an API call.

I would like to save this step as a JSON file AS-IS in a Lakehouse, without having to "expand" this column (that contains Records) to columns.

Is it possible with Dataflows Gen2? Save to Lakehouse as a file but not as a table?

Currently, when I choose Lakehouse as a source, it only prompts me for a Table name and says:

"A new table will be created in Lakehouse"

I need to save a JSON file, not a table. And I want to use the Dataflow, not Data Factory.

Please help