Having crossed from New York State into Connecticut, you've officially arrived in New England, where everything feels a bit smaller, quainter, and older. (And indeed it often is; the town of Greenwich, Connecticut, was founded in 1640.) The Plaza Restaurant isn't historic by those standards, but its unfussy interior, booths and counter stools, pendant lights, and open flattop and kitchen prep area, is certainly a time capsule from the last century in a nostalgic way.
American diners are known for having massive breakfast menus including egg omelets, scrambles, and Benedicts, served with fruit and home fries, plus stacks of pancakes, waffles, and French toast, breakfast sandwiches, toasted bagels with a heavy-handed schemer of cream cheese — the list goes on. Saddle up at the counter stools and watch the action happen right in front of you — just keep in mind it's going to be a big day of delicious eats.

Clams on pizza? Probably not the first topping that comes to mind, but in Connecticut's pizza capital of New Haven, it's a classic New England combination at Frank Pepe Pizzeria Napoletana. One of the reasons Frank Pepe's white clam pizza works so well is that the "apizza" is a white pie, meaning it doesn't have a tomato sauce base. The fresh clams play beautifully when essentially roasted in the pizza oven, along with fresh garlic, oregano, olive oil, and plenty of grated Pecorino Romano.
The good news about arriving on the early side of the lunch rush is that hopefully you won't have to queue too long for a table at the nearly 100-year-old establishment. In any case, make the most of your visit by ordering at least one other more traditional pizza, to compare and contrast the styles and flavors — just don't be surprised if the white clam pizza is the crowd favorite.