Can I use a different lettuce?
Iceberg lettuce is best because its leaves are sturdy and hold up to toppings without tearing. Butter lettuce or green leaf can work but will be more delicate.
How do I get the patties crispy on the griddle?
Use medium-high heat and press the patties firmly with a spatula when they first hit the griddle. Don't flip until the bottom is deeply browned, about 2–3 minutes.
What's the best way to melt the cheese?
Place the cheese slice on the hot patty immediately after flipping, then cover the griddle with a lid or foil tent for 30–60 seconds to trap steam and melt it evenly.
Can I make these ahead?
Cook the patties and assemble the burgers fresh for best texture. You can prep toppings and sauce up to 4 hours ahead and store refrigerated.
How much ground beef should I use per burger?
The recipe uses 21 oz total for multiple servings; divide by the number of burgers you want. A typical smash burger patty uses 2–3 oz of beef per patty.