What I did: I baked the lasagne at 350 degree farenheit for 70 minutes, I turned up the heat to 375 for an additional 20 minutes and then took off the top foil and baked at 425 for 10 minutes (to bake off some of the excess moisture and brown the top just a little bit).
http://www.cookingonadime.com/index.php/2010/lessons-learned-from-baking-frozen-homemade-lasagne/
I decided to look up how to handle cooking a frozen homemade lasagne and discovered that no one seems to agree on what to do with a frozen lasagne! There doesn’t seem to be a consensus on what temperature to bake the frozen lasagne. Some say 220 and others up to 475 degree farenheit.
http://www.cookingonadime.com/index.php/2010/lessons-learned-from-baking-frozen-homemade-lasagne/
#2. Depending on the size of the Pyrex dish, I would preheat the oven to 350 degrees, and cook the lasagna for about 45 minutes. (I would cover it with its lid or aluminum foil.) Then, I'd uncover it and cook it for another 15 minutes, if I wanted to melt and brown the top a bit.
http://forums.welltrainedmind.com/topic/89618-cooking-any-idea-on-how-long-to-cook-a-frozen-lasagna/
Season with sugar, basil, fennel seeds, Italian seasoning, 1 tablespoon salt, pepper, and 2 tablespoons parsley. Simmer, covered, for about 1 1/2 hours, stirring occasionally. Bring a large pot of lightly salted water to a boil. Cook lasagna noodles in boiling water for 8 to 10 minutes. Drain noodles, and rinse with cold water. In a mixing bowl, combine ricotta cheese with egg, remaining parsley, and 1/2 teaspoon salt. Preheat oven to 375 degrees F (190 degrees C).
http://allrecipes.com/recipe/23600/worlds-best-lasagna/
It might take longer to cook than that if it's a really thick lasagna -- if it doesn't seem steamy when you take the lid off after 45 minutes, put the lid back on and cook it for another 15 minutes or so. You can also stick a knife in the middle of the lasagna to see if it's still frozen.
http://forums.welltrainedmind.com/topic/89618-cooking-any-idea-on-how-long-to-cook-a-frozen-lasagna/
Cook frozen lasagna in an oven preheated to 400 degrees Fahrenheit for 1 1/2 to 2 hours, or until it is heated throughout. Bake it covered for most of the cooking time, removing the cover at the end to allow the top to become golden and bubbly.
https://www.reference.com/food/instructions-cooking-frozen-lasagna-80defea22fcc3331
Preparing the Lasagna. 1  1. Make a freezer-friendly lasagna recipe. 2  2. Assemble the lasagna in a dish that can be frozen. 3  3. Decide whether to bake it first.  4. Bring the lasagna to room 1  temperature. 5. Cover the lasagna with freezer-safe plastic wrap.  6. Freeze the lasagna.
http://www.wikihow.com/Freeze-Lasagna
I decided to look up how to handle cooking a frozen homemade lasagne and discovered that no one seems to agree on what to do with a frozen lasagne! What I did pick up were some bits and pieces of do’s and don’t that made sense to me: Do: freeze the lasagne without baking it first.
http://www.cookingonadime.com/index.php/2010/lessons-learned-from-baking-frozen-homemade-lasagne/
Cover the dish with foil. Place the baking dish on a baking sheet to catch any sauce that bubbles over. Bake it Bake frozen lasagna for approximately 1 1/2 hours. Take the foil off the baking dish and bake for another 30 minutes or until the top is lightly browned and bubbling. Take it out of the oven Use potholders or oven mitts to remove the lasagna from the oven.
https://www.reference.com/food/instructions-cooking-frozen-lasagna-80defea22fcc3331
Bring the lasagna to room temperature. If you want to freeze baked lasagna, it's necessary to make sure it has cooled entirely before you freeze it. Otherwise, the texture of the dish won't be as pleasant when it's time to eat it. After making the lasagna, set it aside for one hour to cool. You can also place it into the refrigerator to chill.
http://www.wikihow.com/Freeze-Lasagna
how long to bake a frozen homemade lasagna
You should bake a frozen homemade lasagna for 1 and half hours to 2 hours. It takes 1 1/2 to 2 hours to back a frozen homemade Lasagna.