Whenever I cook a meal that is freezable I make at least two and sometimes three meals so I can cook one that night and freeze the others. Tonight it is lasagna.
I just set up an assembly line and make everything twice. As for the recipe I just use the one on the box of noodles.
I boil the noodles and cook the meat so all the dish requires is heating in the oven.
One box of lasagna noodles perfectly makes two pans of lasagna.
Any casserole type dish will work well for freezing and soups are great too. If you don't want to put the grated cheese on something you can just grate that and place in a small ziploc and tape to the foil and freeze it along with the dish. It is nice to have dishes made for last minute pot lucks or to give someone that you want to make a dish for. Now it is already in your freezer to just grab and go.