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I hate to be a party pooper but no, it generally doesn't work right to use pasta in a baked dish without boiling first. Even just made fresh pasta needs a quick bath in boiling water. That's because cooking the pasta is about more than just making it tender, it's about hydrating and plumping each grain of flour. Even if your sauce is very wet, you're not going to achieve that hydration without boiling. That's not to say the end product will bad if the pasta isn't boiled, it just won't be as good. It's like the difference between homemade pudding and Jello pudding in a box. On a related note, most no-boil pastas are boiled as a part of the manufacturing process, then dehydrated.

Another way to say it is that if you're feeding the junior high wrestling team you'd be fine to use lasagna noodles as you describe as long as the sauce is sufficiently wet, the bake time is long enough, and the casserole is tightly covered. There are dozens upon dozens of recipes online for just this kind of thing. If you're going for a Michelin star, you had better boil your lasagna noodles.

I make lasagna without boiling the noodles all the time! I have also made other noodle casseroles without first cooking the noodles. If your sauce is "wet" enough or if you add a little extra water to your sauce, it cooks fine! Most of the dishes I make, bake for about an hour and that is plenty for plumped up noodles with the same texture as boiled ahead. I do like to make sure that all the noodles are covered in the sauce, otherwise they might still be hard. This works for all kinds of noodles!

Just add an extra cup or so of water to the sauce. It comes out fine! I do it every time.

It works. It tastes great. I've done numerous variations (All Veggie, White lasagna, etc.) for numerous dinners and no one has EVER known the difference. Including several Italian moms.

Just made the mistake with regular lasagna noodles by not boiling them 1st. I cut slits all around then added more marinara sauce mixed with water and poured on top. Almost 2 cups. I then baked covered at 350 for almost 2 hours. It was perfect.

I agree with the answer that it does work with noodles straight out of the Box but the final result is slightly different. For years I've made lasagna with noodles Straight Out of the Box. But boiling them first, even just submerging them in hot water for 5 minutes prior to lasagna assembly changes the texture of the noodle. It plumps it up. Unboiled noodles, while tender, are not as plump. Just gives it a slightly different texture. I also saw a TV chef say something similar to this in regards of lasagna noodles.

Set up the lasagna and let it sit overnight if you're not wanting it same day. My mom and I have always done it that way

I have a Sicilian mother in law from the old country. She taught me tosubmerge the noodles in boiling water for 2 minutes then lay them out layered with ingredients. Small amount of water added to the sauce. What else is good is chopped fresh spinach to give it color.Black olives are good too. Take it from the horses mouthe mother knows best.

This recipe from Serious Eats suggests that you soak the pasta in warm/hot (Not boiling, and not raw) water while you're making the sauce, and then bake that in the oven. It goes on to explain:

[...] any time you are planning on baking pasta in a casserole, there is no need to precook it. All you have to do is soak it while you make your sauce, then combine the two and bake. Since the pasta's already hydrated, it won't rob your sauce of liquid, and the heat from the oven is more than enough to cook it while the casserole bakes.

I read all the above answers. However the best solution is to boil regular lasagna noodles for half the time. This way, you get nicely cooked noodles that are not mushy. If you are making 2 pans, remember turning off the pot in order to reuse the hot water cooks the noodles left in the pot. So use two pots! Most people have electric stoves, so the heat remains when gas stoves cut off immediately the heat does also. Yet the heat remains long enough to over cook your dish. So be sober and keep an eye on your dish. If everything is cooked except the cheese, one doesn't have to bake it as long. I only bake my lasagna for 30 minutes, then cover and allow residual heat do the rest.

I just checked with an award winning chef and restauranteur here in North Georgia.
I have know him for more than 20 years. He says he has always cooked lasagna using dry noodles, and not "no boil" noodles. His lasagna is outstanding and I have seen it served to groups with numerous good cooks included who all raved about it. So, I would trust him and his method. He also says that it slices better and retains its shape better, when portioning it for serving a large group.

In my experience, you need to add extra sauce (not necessarily water) & then ensure that you cover the noodles completely with your sauce & cheese. It’s a little too much sauce for my taste but I don’t want to use water or broth. I have found that even no-boil noodles need extra liquid to cook properly. I used this alternative no-boil method tonight with great success: I soaked regular noodles in hot water with 2 tablespoons salt (for seasoning) until they were pliable, about 12 minutes, stirring occasionally to make sure they didn’t stick together (a few did but the others were fine & I had less breakage than when I boil). I took the sheets out with tongs, dripping wet, layered them as usual & it turned out great. The reason I experimented is that I was very tired & cooked my meat sauce by mistake in my pasta pot & was not about to haul out my cast iron pot just to boil noodles. It worked perfectly. I didn’t have to wash a second pot & the results suited me: noodles that were perfect, not mushy or underdone. I’ll never boil lasagna noodles again. Waste of a pot & fuel. So, yes, you can skip boiling regular noodles but you have to be careful (more sauce & ensure the liquids & cheese to cover the noodles entirely) But for anyone interested in another no-boil approach, I got great results using the hot salt water bath tonight.

Yes. I have used regular, dry noodles right out of the box for lasagna. Use a lot of saucy meat sauce (cooked ground beef and Italian sausage). Remember, you need to put a base of sauce in the pan first before putting in your first layer of the noodles, followed by some of the ricotta mixture (ricotta, eggs, parsley, parmesean cheese,fresh basil) covering the noodles. Add meaty sauce and then mozzarella. Repeat. You can prepare lasagna the day before and let the noodles soak up sauce if you want. Either way, delish. ♡