You can use regular noodles. No need to pay extra for no-cook noodles. In fact, you can use regular noodles, uncooked, for regular oven-baked lasagne, too.

The only thing that I have found is that if I leave my crockpot on high for the whole time, it gets a little burned on the bottom. I haven't made it in a while, but next time I will start it on high for 3 hours and then set it to low for the final 3 hours (or however long it takes, I go by how bubbly it gets).