Becky's Diner in Portland, Maine

Becky's is the real deal: a no-frills waterfront spot in Portland where locals and visitors crowd in for breakfast and lunch. They do straightforward American diner food, heavy on Maine's signature seafood. Lines are normal here, especially weekends, but most folks say the wait is worth it for a solid lobster roll and fries.

• Generous lobster rolls stuffed with actual meat.
• Crispy fries and classic diner sides done right.
• Staff that moves fast even when slammed.
• Waterfront spot with working-diner authenticity.

Order the lobster roll, that's what people come for, and when it's made well, there's plenty of lobster and the fries are crunchy. The lobster and swiss melt is another solid pick if you want something warm. Clam chowder and stuffed lobster both get mentioned often. Skip anything you'd expect to be exceptional; stick with the simple stuff.

Loud and crowded. There's a real working-diner feel with a constant low roar of conversation and clattering plates. Tables are close together, so don't expect privacy.

The kitchen keeps things simple: lobster rolls, melts, chowder, and other comfort-food staples. Food quality is inconsistent depending on who's in the kitchen and when you visit, but when it's on, it's genuinely good. Prices are fair for what you get, especially the seafood.

Guests praise the generous portions and friendly staff, with the lobster roll earning particular attention for quality seafood. But a few diners have noted that the food can taste underseasoned or inconsistent. One recent visitor said service changed noticeably after a simple order mix-up, which soured an otherwise good meal.