Saltine Crackers (Especially when I have a stomach bug)
Nordica Cottage Cheese (Nothing else tastes right)
Good Sushi Ginger (The stuff here, even at Waitrose, is gross and slimy)
Bagels, real actual New York bagels
White Restaurant Style Tortilla Chips
Any real Mexican Food for that matter
Chocolate Ice Cream (This is the one I miss most. Not the bitter dark chocolate stuff they have here, but the creamy, milk chocolaty US type.)