First of all lets all agree to disagree because I already know you love In-N-Out and all the fanboys and fangirls will go crazy in the comments. But the truth is your all wrong and In-N-Out sucks. Now that that is established lets move on.
Anybody who’s been halfway around the block is aware of In-N-Out’s secret menu, which allows you a few custom options other than the regular hamburger, cheeseburger, fries, shakes, and Double-Double that appear on their printed menus. But the options don’t stop there.
Along with the listed single and double, you can add up to four patties to any sandwich. Ask for a three by three or a four by four, and what you get is a triple cheeseburger or quadruple cheeseburger, respectively. They used to accommodate sandwiches larger than 4 x 4 (check out a 100 x 100!), but no longer do. I was fairly certain that they could also accommodate a 2 x 4 or a 4 x 2 (that’d be two patties, four slices of cheese, or four patties, two slices of cheese), but hadn’t actually tried it in action on an unsuspecting cashier.
You can up the flavor by asking for any burger mustard grilled. After cooking the first side, the cook will squirt some mustard onto the top of the patty before flipping it so that it sizzles into the meat on the grill.
Of course, those aren’t your only veggie options. Grilled onions cooked down in the collected meat juices on the hot griddle can be added to any sandwich, and come standard if you ask for your burger or fries Animal Style. An Animal Style burger also includes extra Thousand Island spread, mustard grilled patties, and extra pickles. Animal Style fries, on the other hand, are topped with cheese, spread, and grilled onions. You’ll want to mix ’em up with your fork before the cheese starts to coagulate (of course, you can also ask for just plain old cheese fries). And these options are just the start.
Here is a somewhat comprehensive list enjoy
Whole Grilled Onion
Split in Half
No Toast Bun
Extra Toast Bun
Fries “Well Done”
“Two Minute” Fries
Flying Dutchman Animal Style
Salad on the side
Black & White
Extra Large Shake