Let's talk about pierogi's for a minute. Pierogi's are stuffed little dumplings. They are typically stuffed with potatoes. Others things can be added to the potatoes, such as sauerkraut or bacon or cheese. And then they are boiled, drained and lightly sauteed with butter and onions and often served with sour cream to top them off. Now, you can probably see where there is a time investment when making these. That's why I was so excited when I first discovered this recipe for pierogi lasagna. It's got all the same components . . .just layered instead of as dumplings! Pasta, cheesy potato, onions, bacon. Oh boy. YUM. The original version is fantastic. Head over there for a step by step tutorial. I can't explain it any better. They do a wonderful job on the tutorial.