Again, more an idea rather than a recipe itself. Here at home I sometimes end up with a few sheets of lasagna noodles left uncooked in the box. I can't really explain how and why that happens. I guess it's because since it's just the two of us I try to make a smaller lasagna and there is usually a few sheets that don't fit in our (small) baking dish.
So what to do with just a few lasagna sheets left over? More lasagna, of course. Just make it smaller. I cook the noodles as usual, drain and drizzle a little (very little) olive oil to prevent them from sticking. Place cooked noodles one at a time on a plate, alternating with the filling. Think of the filling as a pasta sauce, rather then lasagna layers. You will scoop some filling in between the sheets of pasta. On this post I show one that I made with some white sauce with mushrooms (that also needed to be used up). But it can be made with marinara, bolognese, anything you want to. A little grated cheese on top and lunch is served. Lasagna in no time.
You can opt to quickly broil the dish and melt the cheese, but be careful not to dry up the edges of the noodle sheets.
For an individual, free-form lasagna:
4 loose sheets of lasagna noodles, cooked
3/4 cup of your favourite sauce (marinara, bolognese, béchamel, mushroom)
parsley of chives to sprinkle over top
Make layers with noodles and sauce (filling). Top with cheese and herbs. Enjoy it!