I tried a lot of existing solutions but I could not use one, so I created a new script for it.
Open Textmate > Preferences > Advanced > Shell Variables and add your node path to the PATH variable (with homebrew append :/usr/local/bin).
Save: Current File
Input: Entire Document
Output: Show as HTML
Activation: Key Equivalent with ⌘R (Command + R)
Scope Selector: source.js
If you don’t want to create a script for one file (instead of the entire Express application) then use this code (e.g. Run File With Node):