1. Get in car
2. Go to In N' Out
3. Enjoy
Cant beat it.
I add chopped onion and garlic to some 80/20 ground beef and form some large patties. I let them sit in the fridge for an hour or two so they hold their shape. I rub the patties in mustard and then coat them in my favorite seasonings. This helps form a nice crust on the outside of the burgers and helps seal in all the juices. If you dont like mustard dont worry you cant taste it at all but it works very well to hold on your seasonings. You can really tatse your seasoning this way much better than you can if you mix it in the beef
As far as what seasonings to use it all depends what you are going for. If I am making my famous BBQ burgers I use a basic BBQ rub type of seasoning and top off the burger with some sharp cheddar and a handful of fried onion straws.
Throw the patties on the grill and try to flip only once. A few minutes on each side is all that is needed.
Try it you will like it.