How large is it though? Just looking at the different ways to choose up to four toppings, I count over 30,o00 different possibilities. I challenge anyone to find a menu with over 30,000 dishes on it.
Edit: In a sad attempt to avoid writing an essay, I did the math on how many unique hamburgers there are. I did not limit the cheeses, toppings, or sauces, so this includes a burger with 12 different kinds of cheese, 30 toppings, and 21 different sauces. Let me say, there are a lot of possibilities.
To get an idea of just how many possibilities there are, if everyone on the planet ate three hamburgers every day, it would take over two hundred million years to exhaust all the options.