#1 - a "slider" is a small, thin ground beef patty that has been cooked by steaming over onions and then served on a small bun.
#2 - any other mini burger on a small bun is just that -
a mini burger
Here's today's lunch...
80% fresh ground beef patties on thinly sliced Spanish onion, butter and kosher salt in the original non-stick - a cast iron skillet.
Tasty steam.
Flipped onto the non-onion side, rocking the Maillard reaction.
Smokehaus Blue Cheese.
All that's left is a small bun and Motherlode Provisions Wildfire hot sauce.