Welcome back, dear thread!
Here's some additions from my travels: (I have eaten all of them.........)
New Mexico: Green chile. Green Chile, Greeen chile.nCalabacitas, and calabacita burrito (vegetables, such as squash, corn, green chile. Sometimes with cheese). Posole. Green Chile Stew. Caldillo (soup). Chile rellenos. (cooked whole green chile stuffed with cheese). Indian Tacos (served on large puffy taco). Biscochitos (cookies)/bunelos (fry bread). Cactus jelly. Pinons (pine nuts). Green chile. Green chile.
VA: Peanut soup. Pumpkin butter. Apple salsa. Apple candy (soft).
Pennsylvania: Pretzels, pretzels, pretzels. My fav is "Unique Pretzels" from Reading, made with winter wheat and very crunchy. Mushrooms, mushroom soup.
NYC: Eggancheeseonaroll. Breakfast staple, esp. in delis and food carts. Add hot sauce or ketchup. Fried bologna.
NJ: Taylor Pork roll. Cranberry.Blueberry. Tomato (Garden State!)
MD: Esp. near Baltimore. Pit beef with horseradish and onions mmmmmmmmmmm. Bay Seasoning potato chips.
FLA (NY too): Cuban coffee. Better than espresso!
DE: Crab puffs. Delaware crab seasoning. (mustard, garlic, black pepper, cayenne - sprinkle on everything).