Ingredients :

• Ground beef — Choose 15 to 20% fat content. Beef that is too lean cooks up dry, without juice or character. After cooking, drain it properly — even place a sheet of paper towel over it if needed — otherwise the grease will wilt the lettuce in three minutes.
• Frozen fries — They work very well, own it. The only real trick: preheat the tray in the oven before spreading the fries. Contact with the already hot metal starts the crust immediately and avoids the soft, spongy bottom side.
• Romaine lettuce — Better than iceberg for this dish because it holds up better against hot ingredients. Keep it in the fridge until the last moment, well-dried — wet lettuce dilutes the sauce and makes the bowl watery.
• Shredded cheddar — Grate it yourself if you can. Bagged cheddar contains anti-caking starch that also blocks melting. An aged cheddar grated at the last minute melts properly upon contact with the hot meat, into little strings that stick to everything.