Lobster Lab in Carlsbad serves single-protein lobster rolls, king crab rolls, and shrimp rolls from a dedicated stall inside the Windmill Food Hall on Palomar Airport Road. The core menu is built around chilled and warm Maine lobster on toasted brioche, compressing a full-service seafood experience—market-weighted lobster, bisque, and caviar—into a counter-order format on the same Carlsbad dining circuit as Pelly's Fish Market & Cafe's sit-down seafood plates. A lobster grilled cheese pairs garlic-butter-marinated lobster with mild cheddar on brioche and arrives with a five-ounce cup of house lobster bisque for dipping. Caviar service on brioche with herbed cream cheese, hard-boiled egg, and chives adds a luxury tier uncommon in fast-casual food halls, bringing a single-ingredient intensity to the Windmill that parallels GONZO!'s robata-focused format elsewhere in Carlsbad. The XL lobster roll scales to a double portion at $47, while the XXL reaches $69 for a triple fill of hand-pulled lobster meat on a single brioche split.