Route::
=========
Route::get('/rss.xml', 'RssController@index');

Controller:: RssController.php
=========
<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;

class RssController extends Controller
{
    public function index()
    {
	  $posts = \App\Post::orderBy('created_at','desc')->take(5)->get();
      //$articles = Article::all()->first();
      //$categories = Category::all()->first();
      //$questions = Question::all()->first();
      //$tags = Tag::all()->first();

      return response()->view('rss.index', [
          'posts' => $posts,
      ])->header('Content-Type', 'text/xml');
    }
}

Views::==

<?php echo '<?xml version="1.0" encoding="UTF-8"?>'; ?>

<rss version="2.0"
xmlns:content="http://purl.org/rss/1.0/modules/content/">
  <channel>
    <title>News Publisher</title>
    <link>http://campustimes.press/rss.xml/</link>
    <description>
      Read our awesome news, every day.
    </description>
    <language>en-us</language>

	@foreach($posts as $post)
		<item>
			<title>{{htmlentities($post->title)}}</title>
			<description>{{htmlspecialchars(htmlentities($post->excerpt))}}></description>
			<link>{{ route('single.post', ['category' => $post->Category()->first()->slug, 'id' => $post->id, 'title' => make_slug($post->title)]) }}</link>
		</item>
		@endforeach

  </channel>
</rss>