I used 1 kg of ground beef for 4 burgers, and seasoned with salt, pepper, paprika powder, two ts of bbq sauce, a squirt of mint chilli sauce.
To make the burgers, I use a stuffed burger press, and make a cup for the filling.
To make the filling, take a box of cream cheese and whip it a bit to loosen. Dice an avocado, slice some basil leaves, and mix it in. Then use a spoon to fill the burger, finally put a lid of meat on top, and seal by squeezing gently on the press. use a knife to loose from the press after evicting, and bbq until scrumptious. Add a slice of blue cheese after flipping :)