administraCursos/app/Http/Controllers/HomeController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Department;

class HomeController extends Controller
{
    public function index(Request $request) {
        return view('welcome', [
            // 'department' => Department::find($request->session()->get('department')),
        ]);
    }
}