You could use filesystem API to write anything you want to any file. You would create an HTML string using any method you want (string concatenation for example or using Underscore.js templates) and then write it to any file using the Node.js filesystem API.
var fs = require('fs');
var htmlContent = '<html>Whatever</html>';
fs.writeFile('/my-page.html', htmlContent, (error) => { /* handle error */ });
