How long does it take to cook lasagna from a refrigerator?

In this brief article, we will answer the question, “How long does it take to cook lasagna from a refrigerator?” tips to cook chilled lasagna and methods to store as well as reheat lasagna.

How long does it take to cook lasagna from a refrigerator?

It takes approximately 40-45 minutes to cook lasagna from a refrigerator. The time required to cook refrigerated lasagna depends on the oven’s temperature as well as the amount of lasagna that had been refrigerated. The size of the lasagna can also matter.

If the baking tray was 8 inches, then it would take around 40 minutes to cook the lasagna. If the baking tray is 9 by 13 inches, then it would take 50 to 75 minutes. If the baking tray was huge, it would take more than an hour.

If your lasagna contains heavy ingredients like ricotta cheese or meat sauce that can also increase your cooking time.

How to cook lasagna from the fridge?


  • 1 pound Italian sausage
  • 1 pound ground beef
  • 1 can pizza sauce
  • 1 cup marinara sauce
  • 2 beaten eggs
  • 1 carton ricotta cheese
  • 12 no-cook lasagna noodles
  • 3 cups shredded cheese


  • In a pan, cook the sausage and beef on medium heat. Cook them till you no longer notice the pink portion on the meat. In a bowl, add eggs, parmesan cheese, parsley, ricotta cheese, and pepper. Mix well.
  • Spread a little bit of meat sauce on the baking tray. Add 4 noodles over the sauce along with a cup of meat sauce as well as mozzarella cheese if required. Repeat the same with other layers.
  • On the top of the layer, add noodles along with mozzarella cheese, and meat sauce. Place it in the fridge overnight.
  • Preheat the oven to 375℉. While the oven has been preheating, remove the lasagna from the fridge. Bake the lasagna after covering it for 40-45 minutes. You can bake for an additional 10 minutes to allow the cheese to melt.
  • Remove from the oven and let it cool for 10 minutes before serving.

What are the tips to cook lasagna?

  • It is essential to cover the lasagna when you bake. You can do this for 30 to 45 minutes. This helps in ensuring that the lasagna gets heated properly and prevents the lasagna from dying.
  • It is also important to note that if your lasagna has many layers, the baking time would increase substantially. You can have 3-4 layers in lasagna to reduce your cooking time.

Use shredded cheese instead of sliced cheese. This is because shredded cheese has a faster cooking time than sliced ones.

  • If the pasta has a golden crust, it is an indicator that the lasagna has been cooked well. The pasta should have been appeared to soften as well.
  • Bake the lasagna at least till the temperature in the pan’s center would reach 165℉.
  • If the lasagna has been thoroughly frozen then it can be cooked directly from the freezer though the baking time would increase and there is a risk of the lasagna not being heated evenly.

In the case of frozen lasagna, thaw the lasagna properly in the refrigerator. If the lasagna has been thawed partially, you can still place them in the oven but thawing the lasagna fully can save your time and help in cooking the lasagna evenly.

Avoid thawing the lasagna at room temperature as bacteria can spoil the lasagna which can increase your risk of developing food poisoning

How to store lasagna in the fridge?

If you have leftover lasagna remaining, store them in the fridge at a temperature below 40℉. The leftover lasagna can be kept in the fridge for 4-5 days.

How to reheat lasagna from the fridge?

If you wish to reheat lasagna, you can do so in the microwave or oven. If you are reheating the lasagna in the microwave, place it in a microwave-safe container and make sure to add a little bit of water and marinara sauce. This helps in reducing dryness.

Cover the lasagna with a lid and wait till the lasagna turns bubbly. Place a meat thermometer and let the temperature of the lasagna reach 165℉ before removing it from the microwave.

If you are planning to reheat the lasagna in the oven, then preheat the oven till it reaches a temperature of 425℉. Pour little water along with ¼ cup marinara sauce to reduce dryness. Bake for 20-25 minutes.


In this brief article, we have answered the question, “How long to cook lasagna from a refrigerator?” tips to cook chilled lasagna and methods to store as well as reheat lasagna.


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