Is this a good approach to work with the MVC pattern and Express.js?

I would like to have opinions/suggestions whether this is a good way to implement/enhance the MVC pattern with Node.js and Express.js

1) I initialize the app normaly, but at this stage I call a function I named routeRegistrar, as follows:

var 
    express = require('express'),
    routeRegistrar = require('./routeRegistrar'),

var app = express.createServer();

configureApp(app);
routeRegistrar(app); //note this line

app.listen(3000, function(){
  console.log("App started");
});

function configureApp(app){
    app.configure(function(){
        //configuration stuff with app variable
    });
}

2) I adopt the convention that every controller will be placed on a directory called Controllers, and that every controller is constituted by a module that contains one or more actions, pushed to the exports variable as an object following the above convention:

{ method: 'GET', url: '/example', action: function(req, res){  } }

So this way I can automatize the route registering process, and also keep the method/url close to the code that handles the request (I think its easier to read/maintain). So the code for the routeRegistrar is the following:

var fs = require('fs');

module.exports = function(app){
    fs.readdirSync(__dirname + '/controllers').forEach(function(controllerName){
        var controller = require("./controllers/" + controllerName);

        for (var actionName in controller) {
            var action = controller[actionName];
            app[action.method](action.url, action.action);
        }
    });
}

And simple a indexController would look like this:

exports.index = {
    url: "/",
    method: "get",
    action: function(req, res){
      res.render('index');
    }
}

IMHO I believe this is a better approach to every time I wanted a new controller/route registered I had to

1- open app.js 2- place another require line at the top 3- write code like app.get('/index', indexController.index);

Please, let me know wheter this is a good way to continue the project, I would like to hear your opinions and suggestions.

EDIT: Based on Tyrsius answer and the lack of another opinions I will use his approach with some modifications:

routeRegistrar.js

var fs = require('fs');

module.exports = function(app){
fs.readdirSync(__dirname + '/controllers').forEach(function(controllerName){
    var controller = require("./controllers/" + controllerName);

    for (var actionName in controller) {
            controller[actionName](app);
        }
    });
};

indexController.js

module.exports.index = function(app){
    app.get("/", function(req, res){
        res.send("New approach!");
    });
};