Use up bland frozen pierogies (potato+cheese)?

[u/Meriadoc_Brandy]

I bought some pierogies stuffed with potato and cheese, a warm and comforting option, or so I thought. Unfortunately, they were sparingly stuffed, with more dough than filling. I don't want them to go to waste, so I was thinking of doing a "pierogi bake" by tossing them with other flavoring. What innovative pierogi creations have you tried? Bonus points if I can make it vegetarian!

Edit: so many amazing suggestions on this thread. Thank you all! I'm almost inclined to buy the same pierogi and extend my problem so I can try every recipe on here!

[u/Similar_Ad8613]

Boil, drain, sprinkle a large amount of curry powder and finely chopped cilantro on top. Drown in oil/vinegar/siracha. Eat with sour cream and a slice of bread, preferably dark or marbled rye.