Frozen Lasagna Cook Time

Frozen lasagna is prepared with fresh ingredients before freezing and makes a quick and convenient way to prepare delicious pasta dishes. And as for frozen lasagna cook time, it depends on how much time you want to prepare it and cook it.

Generally, it takes 60 to 120 minutes to get your frozen lasagna ready to cook. Thawed lasagna takes 60 minutes to cook, while medium-sized lasagna takes 90 minutes, and an extra-large one takes 20 minutes.

Frozen Lasagna Cook Time:

Important to Note

1. Baking Time

You can bake your store-bought lasagna directly from the package and into the preheated oven.  Normally, the package has instructions on how long you can cook, but generally, the ideal cooking time for average-sized lasagna is 90 minutes. Cook halfway with the plastic covering still on, then remove it for efficient caramelization of the cheese topping.

After removing the plastic cover, reinsert it after 5 minutes and continue until the lasagna begins bubbling when tested with tongs. Remove and serve to your preference. Keep in mind that frozen lasagna cook time may vary depending on their thickness and size.

2. Baking Temperature

Store-bought has a recommended baking temperature indicated on the packaging, but generally, frozen lasagna cooks well at a temperature between 375 degrees to 400 degrees Fahrenheit.

Unlike store-bought lasagna, which is made to be put directly in the oven, Homemade freshly prepared lasagna that is frozen for later consumption needs to be defrosted first before cooking.

3. Portion Size

If possible, you can reduce the portion sizes of your lasagna to reduce the cooking time alternatively. You can cook the smaller portions in a glass casserole dish or even a small roasting pan, so they won’t take too long to cook.

4. Freezing Lasagna Portions

If you prefer to freeze lasagna parts rather than the whole, you can easily do so in smaller freezing containers for freezer bags. To properly freeze the lasagna, wrap the individual servings tightly to keep air and moisture out.

Frozen Lasagna cooking Steps

Here are our steps on how to cook lasagna quickly:

1. Take your lasagna from the freezer and preheat your oven to 400 degrees Fahrenheit.

2. Put your lasagna into an oven-safe baking dish. Use two-layer pans if necessary.

3. Cover it loosely with aluminum foil. This helps with browning and also seals in steam. It also keeps the cheese from burning

4. Bake for 30 minutes while covered.

5. Uncover and bake for 30 minutes.

6. If your lasagna is larger, bake another 20 minutes uncovered.

7. Let it stand five minutes before serving.


What is the best way to freeze lasagna, cooked or uncooked?

As you can see from our recipe, it’s not necessary to defrost the lasagna before cooking unless you want it to cook faster. There are two defrosting the lasagna; either use a refrigerator or a microwave.

The refrigeration method is better because you only have to put your lasagna there to defrost overnight. On the other hand, if you want to defrost using the microwave, ensure your lasagna has no foil or metal.

Also, be sure to keep checking on it unless you want the microwave to start cooking for you; set your microwave to defrost for about 5-10 minutes.

What’s the best way to cook lasagna, frozen or defrosted?

Thawing a frozen lasagna before cooking is one option if you’d like to make things easier for yourself. However, you can skip the thawing part and just cook your frozen lasagna directly from the freezer. Yet, as much as you can cook it frozen, thawing it fast brings out tastier results and takes less time.

A frozen one takes 90 minutes, while a defrosted one takes only 60 minutes.

How long does frozen lasagna last?

To set your lasagna ready for freezing, line a pan with foil and put your lasagna directly on it and wait until it cools completely. Freeze it until it turns solid, cover it with an additional layer of foil, and store it in the freezer for up to one month.

If you have a good quality freezer and the temperature constantly remains below 0 degrees F, your lasagna can last for about three months or even more.

How do I reheat leftover frozen lasagna?

To reheat or cook frozen lasagna leftovers, set your oven to 350 degrees Fahrenheit, unwrap your frozen lasagna pieces, and put them in an oven-proof dish. Cover it loosely with aluminum foil. Bake it for 10-20 minutes per half-inch of thickness, depending on the size of your lasagna. After that, carefully remove the foil, let rest for 5 minutes, and serve as desired.

Alternatively, after putting the lasagna in an oven-safe dish, you can thaw first in the microwave in defrost settings for 5 minutes, cover with foil and bake in the oven at 160 degrees Fahrenheit for 10-15 minutes, then take off the foil and rest for 3 minutes before serving.


While there is no specific super-fast way to get a frozen lasagna ready, there exist ways you can incorporate to ensure a smooth process. To take less frozen lasagna cook time, defrost the lasagna overnight in the fridge or the microwave before cooking. You can as well shorten your cook time by cooking using a convection oven.

If you are looking for an easy-to-go meal that you can cook without spending lots of time, this is it. Lasagna is a satisfying dish that you can have as part of your dinner or lunch, and you’ll be able to enjoy the comfort food at home in such a short amount of time.

READ ALSO: How Long to Cook a Stuffed Turkey?

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