There's so many great Polish foods out there., here are some that aren't pierogis
Bigos (also known as Polish Hunter's Stew) is a hearty delicious dish made with meat, cabbage, sauerkraut and vegetables.
Mizeria –Polish Cucumber Salad
My Grandma's Old World Polish Recipes - Loads of recipes here
OMG. Polish dumplings are freakin awesome! Nobody makes these better than my mom!
Refried Kopytka - Polish Potato Dumplings
Polish Food - Meatballs with Mushroom Sauce - Polish Cuisine
Polish Bismarcks or Doughnuts Recipe - Paczki (These are so dang good, that you will just not be able to stop, and when they are gone, your belly aching, and your blood full of sugar and fat, you will STILL crave these!)
This is the recipe I found handwritten in my Polish grandmothers cookbook. I have since found ones almost identical in Polish cuisine cookbooks.
A Christmas Eve tradition when I was growing up! Polish Mushroom Soup with Barley|Craving Something Healthy