How to Reheat Lasagna in the Oven

Is reheating lasagna in the oven alright? It is, especially if you want your leftover lasagna to taste “quite” fresh when you bite into it for the first time. 

Lasagna is delicious Italian-inspired food that we all enjoy from time to time. When you make your lasagna at home, you can add your favorite cheeses, meats, vegetables, and toppings. 

When it comes to reheating food, the oven is preferable for most leftovers. Even though the techniques for reheating lasagna in the oven are simple, some points are to keep in mind.

It is important to understand how to reheat lasagna in the oven if you want your leftover lasagna to flavor as impressive as it did the first time you made it. 

If you microwave till it is heated, you may risk having soggy, unsatisfying lasagna.

The good thing is that leftover lasagna can preserve in the fridge or freezer for later use. Make sure to reheat it properly to preserve a yummy taste.

Can we store lasagna in the fridge for a long time?

According to Food Network, you can keep leftover lasagna in the refrigerator for up to 5 days before it spoils. To achieve optimal results, keep lasagna in an airtight container so humidity can’t get beyond. To double-check if your lasagna is still satisfactory, look for dry noodles and the funky odor of cheese or tomato sauce.

How long can we keep lasagna in the freezer?

If you have excess lasagna that you thought you couldn’t consume within five days, you can easily store it in the freezer. Taste of Home suggests your bundle of pasta taste can survive in the freezer for up to 3 months. Similarly, it’s best to keep it in a sealed jar to keep moisture and other pollutants out.

Try to remember that you should thaw frozen lasagna in the refrigerator overnight before reheating it. However, you can reheat refrigerated lasagna by using the microwave or the oven; you’ll have to add at least 10 – 15 minutes to the cooking time.

How to Reheat Lasagna in the Oven

We believe that reheating lasagna in the oven is ideal because it preserves the original cooking condition. It’s also an excellent way to reheat a whole lasagna rather than single portions. It takes time, so plan accordingly and only use this procedure if you have 30-45 minutes.

Though, reheating frozen or refrigerated lasagna in the oven is the simplest solution. Microwaving the pasta can change its texture and turn it into a mushy mess. Reheating in the oven provides a great meal that makes it taste super fresh.

Reheating the remaining lasagna is tough as noodles absorb the sauce in the refrigerator, converting it fresh with crunchy, yummy corners. Well, we know how to reheat lasagna such that it tastes as if it just came out of the oven.

Step 1: Preheat the Oven to 325 ℉ (163°C), avoid overheating; because extreme heat will grab all the moisture from lasagna, drying it out instantly. Turn the heat down to 325 ℉ if you’re using a toaster oven.

Step 2: You won’t need to add any additional water if you prefer the oven option because the mild heat will prevent the lasagna from drying out. To preserve the moisture, you’ll need to wrap it with foil. 

Tip: You can also use a toothpick trick like the microwave technique to protect the foil from cheese if you’re reheating a single slice of lasagna. You can also use an oven-proof baking dish covered in foil for several pieces or a complete lasagna.

Step 3: Bake the Lasagna for 30 to 45 minutes, or until the center temperature reaches 165°F. If you don’t have a temperature sensor, look for the lasagna to start melting and sparkly cheese on top. Your soft, melty, and delicious lasagna is ready after 30 to 45 minutes.

Other reheating methods 

Reheating lasagna in the microwave 

If you’re heating one or two meals at a time, this technique is easy, simple, and completely safe. Microwaving a large portion of lasagna isn’t good since the dish won’t reheat equally, and no one wants to be the unhappy diner who gets coagulated cheese while everyone else gets a melty bite. Follow these instructions for small servings, and you can also use your kitchen tools.

Step 1: It usually works with a single dish, but you can generally get away with adding two portions to a single dish. Just make sure the slices don’t come into contact with one another. To prevent the lasagna from drying out while cooking, sprinkle two teaspoons of water on each slice.

Step 2: Place a toothpick into the middle of the lasagna slice, allowing it to expand a few inches. It avoids cover in contacting the lasagna and grabbing all your yummy cheese.

Step 3: Wrap a microwave-protected paper towel on the top of the lasagna, place it around the toothpick. You can also use a part of loosely microwave-safe wrap for the entire plate. Then, heat the lasagna at maximum intensity for 90-second until it’s warmed thoroughly.

You have to avoid overcooking the lasagna to the degree of explosion. Try to set at 165°F in the middle, which can take 5 or 6 minutes approx.

Reheating lasagna in the skillet 

Although it is not as speedy as reheating lasagna in the microwave, the skillet process is still quicker than the oven. It also tastes like oven-baked lasagna.

Step 1: Put 1 or 2 pieces of lasagna in a skillet. Pour 1/4 cup water over the top to re-wet the lasagna for each piece. 

Step 2: Warm the skillet over medium-high temperature until the added liquid begins to boil. Look for the water just heating up rather than large, boiling bubbles.

Step 3: Lower the temperature to medium-low and cover the skillet with a lid. Cook for around 20 minutes, moving the pan periodically. The lasagna will soak up the additional water and convert it into yummy and juicy. If you want, you can open the cover in the last 5 minutes of heating to make it more delicious.

Reheating lasagna in the air fryer 

An air fryer is one of our favorites. It’s fantastic for cooking, but it also makes reheating leftovers a delight. An air fryer works similarly to a convection oven in that it distributes hot air to cook food; it works quicker.

Step 1: It’s necessary to initiate with a preheated air fryer. You don’t need to skip this step because it only takes some moments.

Step 2: Reheating Lasagna in an air fryer also works best with a loaf pan. It prevents the cheese from melting, and most air fryers can accommodate a regular loaf pan. To preserve the moisture inside the loaf pan, cover it with aluminum foil.

Step 3: After 10 minutes, check the lasagna to see if the sauce is bubbling and the melted and shiny cheese. Cook until the temperature reaches 165°F.

Frequently asked questions 

Can we reheat the whole lasagna?

Yes absolutely! We usually make lasagna ahead of time, enabling the flavors to merge and blend in the fridge. The duration of time required to cook the lasagna is dependent on its quantity. A whole lasagna usually is too huge to microwave, but it reheats well in the oven when covered with foil.

Which one is better to reheat Lasagna; Oven or microwave?  

Of course, reheating frozen or refrigerated lasagna in the oven is the safest method. Microwaving the pasta can change its texture and turn it into a mushy mess. Reheating in the oven provides a great freshly baked taste. Sometimes you don’t need to use the oven if you only want to eat a single serving of lasagna. However, reheating in the microwave does not taste as well. For the best results, we recommend reheating your lasagna in the oven.

Can we reheat frozen lasagna in the oven?

Yes, we can reheat frozen lasagna in the oven, but it takes some time. Oregon State University recommends shifting the lasagna to an oven-proof tray and baking it at 400°F(without cover). A single serving takes around one hour to prepare, while a huge meal can take up to 2 hours.

Is it safe to reheat frozen food?

Many of us are unaware that defrosting and reheating frozen food has some disadvantages because the quality of lasagna declines with each reheat; we recommend only reheating it once. According to the US Department of Health and Human Services, toxic germs reproduce the fastest between 40 and 140°F. Thus, you should stop defrosting the lasagna out on the kitchen counter; if it is for over 2 hours, it’s not healthy.

How long does lasagna last in the fridge and freezer?

The concise response to that query is very dependent on storage conditions; refrigerate lasagna within 2 hours of making. Refrigerate cooked lasagna in sealed containers to extend its storage life and maintain its quality. You can keep cooked lasagna in the refrigerator for 3 to 5 days if refrigerated correctly and in the freezer for up to 3 months.  


There are many best and easiest ways to reheat this delicious meal. Before choosing whatever method to use, make sure you plan ahead of time to know how to reheat lasagna in the oven and when to tell your party guests to arrive. If you’re going to reheat lasagna in the oven, allow plenty of time for it to heat all the way through. After all, no one enjoys biting into a cold piece of lasagna.

About Harris V.

Harris is a content coordinator and senior writer at Gliving. After years of cooking professionally, Harris traded in his knives for the pen. He spends most of his time writing these days but still loves to get down with some delicious recipes in the kitchen for his family.