Someone has researched which Thanksgiving casseroles are popular in each state . . . and GREENS are #1 in 17 states (those include various green bean and broccoli casserole recipes). Potato casseroles are #1 in 11 states, while corn casseroles are #1 in eight states. Several states had more unique casseroles, including, “Breakfast casserole” in Connecticut, “Mac and Cheese casserole” in Nebraska, “French toast casserole” in Virginia, and North Carolina is big on “pineapple casserole” (which apparently is a “Southern thing”).