I came in to primarily echo what Cervase said. Lose the ricotta and the cottage cheese. I’m not a fan of either and find the texture in lasagna to be unfavorable. It creates a lasagna that falls apart on the plate and adds too much wetness. I prefer to use a higher proportion of soft Italian cheeses instead. Typically a mix of mozzarella, asiago and provelone. I’m not too picky here, a few bags of shredded Italian blend (Kraft or whatever) do fine. I’ll then add a package of sliced mozz to layer in.
Also, I’ve never been able to accept Turkey in a Italian recipe. Something about it just doesn’t seem to play nicely with tomato and the typical Italian seasonings. A lean ground beef and/or pork/sausage mixture will be easier to meld in the sauce.
The key to me to making good lasagna is to make the meat sauce seperately and ahead of time. As others have suggested, making your own is key. Using canned sauces or spaghetti sauces is perfectly fine, but they are better treated as an ingredient instead of a finished sauce.
Brown your meat. Saute onions, shallots and garlic in olive oil. Add the meat to the mixture and season it. Then add your sauce. It can be a jar of spaghetti sauce or a combination of canned tomtao products or fresh veggies. Whatever. The key here is that you simmer it all together, season it and taste it frequently. If you get this part of the lasagna flavored to your liking, then the rest of the dish will taste good. Making a good ragout (I think it’s important that the meat is added here, not in the pan) thats seasoned right will dictate the end product. As you;re simmering it in the pot you still have the power to control the seasonings. Add more garlic, more oregano, more salt, a dash of sugar, anything you think it’s missing. Make this sauce yours. Make alot, it’ll be terrific on pasta, freeze small portions for quick and easy meals.
Then, once your meat sauce is perfect, you can start building the lasagna now.
I think it’s best to boil the noodles. I don’t like the idea of trying to manage the wetness of a dish that contains dry noodles. You can make it work, but it’s a trickier task. Boiling them ahead of time will allow you to better control the consistency of the dish.
Now build the dish as normal. Start with a layer of sauce. Then the noodles. Then shredded cheese mixture Then sauce, noodles, slices of mozz, noodles, sauce, shredded cheese, sauce, noodles, and topped with slices of mozz. A bit of parmesean can be sprinkled on to taste at any point in the middle.
This will create a very cheesey, denser lasagna that will be just havenly after a few days.