You might associate fried egg with breakfast dishes, but adding a fried egg to your burger is an absolute game changer! Simply drizzle some olive oil into a pan and fry the egg until the whites are firm but the yolk is still runny.
Mac and cheese is an all time favorite, but mac and cheese as a topping in a burger is the ultimate. Simply boil the macaroni in salted water. To make the roux, melt butter in the pan before adding flour and whisk to combine.