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Costco Meatloaf Instructions

Kirkland Signature Meatloaf and mashed potatoes from Costco. This post is going to tell you all you need to know about the meatloaf sold at Costco, including how to prepare it, how long it takes and a lot of other information.

Costco Meatloaf Instructions

Costco Meatloaf Ingredients

Costco Meatloaf pack comes with two parts meatloaf and mashed potatoes. The net weight of Costco meatloaf and mashed potatoes is about 1.8kg which means about 6 cups. 

Let’s take a look at the ingredients of each:

  • Costco Meatloaf: Ground Beef, Milk, Tomato Concentrate, Butter (Cream, Salt), Whole Eggs, Flour, Onion, Distilled Vinegar, Corn Syrup Canola Oil, Corn Syrup, Garlic, Toasted wheat crumbs, Spices, Parmesan Cheese, and Parsley.
  • The Mashed Potatoes: Yukon gold potatoes, Milk, Butter, Cheddar Cheese, Cream, Salt, and Water.
  • The Meatloaf Sauce: Water, Sugar, Tomato paste, Salt, Vinegar, Garlic Powder, and Spices

Are Costco Mashed Potatoes Good?

As a whole, Costco’s mashed potatoes that come with the meatloaf are a good option. They can’t compare to mom’s mashed potatoes, but they’re far better than instant. Mashed potatoes are tasty and complement many different types of food.

How Many Servings Are in Costco Kirkland Meatloaf?

In my experience, Costco meatloaf and mashed potatoes pack come in 1.8kg in weight, which means about 6 cups, and this can serve a family of 4 adults. The extra serving can accommodate up to eight people if you prepare it along with other side dishes like soups or salads.

Costco Meatloaf Price

Considering its size and convenience, this meal is very reasonable in price. Costco Meatloaf cost $17.58, and I believe it would feed a family of four (especially if accompanied by roasted vegetables or a salad). The meatloaf is rather large, so it makes a delicious meal at a reasonable price.

How Long To Cook Costco Meatloaf In The Oven

Costco meatloaf instructions state that the meatloaf needs to be cooked for 70 minutes at 350°F. I have experienced that it will take a bit longer(about 10 min longer) than recommended. 

In order to achieve the perfect result, when you start baking Costco meatloaf, check the internal temperature after 70 minutes. It should be between 165°F and 180°F. If not, give it 10 min and check again.

Costco Meatloaf Instructions
Costco Meatloaf Instructions

Best Temperature To Cook Costco Meatloaf

Costco meatloaf is best cooked at 375°F, but you can give it away and cook it at higher temperatures. Cook Costco meatloaf at 375°F for about 50 minutes. Increase the temperature to 400°F and cook for about 15 minutes to get the brown color.

How To Cook Costco Meatloaf In The Oven

  • Preheat the oven to 375°F.
  • Remove the lid because is not oven-safe, and cover the meatloaf and mashed potatoes with aluminum foil.
  • Cook For 70 min at 375°F. 
  • Check the internal temperature should reach 165°F-180°F.
  • Give a couple of minutes if needed.
  • Serve and enjoy.

How To Cook Costco Meatloaf In The Microwave

You should follow these steps if you want to cook Costco meatloaf in the microwave.

  • Remove the meatloaf and the mashed potatoes from the package.
  • Prepare them separately in microwaveable dishes.
  • Heat up the Costco meatloaf uncovered for about 10 min on high.
  • Cover the pan with microwave-safe waxed paper and cook at 50% for 15 to 20 minutes or until an instant-read meat thermometer inserted in the center of the loaf registers 165°F -180°F. 
  • Microwave the mashed potatoes for about 3 minutes until they are fully melted and the butter is completely melted.
Costco Meatloaf slices
Costco Meatloaf Instructions

What To Serve With Costco Meatloaf

Costco Meatloaf comes with Mashed potatoes as a side this will make them a complete dinner meal but you can also serve it with roasted veggies, potato soup, or broccoli soups, and the list goes on and on.

There are several dishes you can serve with Costco meatloaf for dinner if you have a large family:

Costco Meatloaf Nutrition Facts

Serving Size 153 g  

  • Calories 280  
  • Total Fat 15g 
  • Saturated Fat 8g 
  • Trans Fat 0g
  • Cholesterol 75mg  
  • Sodium 620mg 
  • Total Carbohydrate 23g
  • Dietary Fiber 2g
  • Sugar 7g
  • Protein 14g

Frequently Asked Questions

Is The Meatloaf At Costco Fully Cooked?

Yes, Costco meatloaf is precooked, so there’s no need to worry about fat leaking into your mashed potatoes or thoroughly cooking the meat. Much better than attempting to shape raw hamburger with your bare hands!

How Many Calories Are In A Costco Meatloaf?

In terms of nutrition, one-sixth of a Costco Meatloaf plate has 520 calories, 35 grams of fat, 20 grams of protein, and 980 milligrams of salt.

What is in Costco mashed potatoes?

The Mashed Potatoes from Main St. Bistro at Costco are 100% natural, as they are prepared with fresh potatoes and full milk and do not include any additives. One may purchase a 4-pound bag of mashed potatoes, which includes two 2-pound pans of mashed potatoes each.

Can you put Costco meatloaf in the oven?

Yes, You should cook Costco meatloaf in the oven at 375°F for about 70 min.

Costco Meatloaf Instructions

Difficulty:BeginnerPrep time: 2 minutesCook time:1 hour 10 minutesRest time: 3 minutesTotal time:1 hour 15 minutesServings:4 servingsCalories:280 kcal Best Season:Summer


Costco meatloaf will be a real treat for any meatloaf lover. There’s only one thing wrong with this: the mashed potatoes need some salt and pepper (you can add it yourself), but the meatloaf is fantastic and tastes excellent. It is worth it to try Kirkland Meatloaf.



  1. Preheat the oven to 375°F.
  2. Remove the lid because is not oven-safe, and cover the meatloaf and mashed potatoes with aluminum foil.
  3. Cook For 70 min at 375°F. 
  4. Check the internal temperature should reach 165°F-180°F.
  5. Give a couple of minutes if needed.
  6. Serve and enjoy.
Keywords:Costco Meatloaf Instructions, Costco Meatloaf
Nutrition Facts

Serving Size 153 g

Servings 1

Amount Per Serving
Calories 280
% Daily Value *
Total Fat 15g24%
Saturated Fat 8g40%
Trans Fat 0g
Cholesterol 75mg25%
Sodium 620mg26%
Total Carbohydrate 23g8%
Dietary Fiber 2g8%
Sugars 7g
Protein 14g29%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.


Saturday 17th of June 2023

Thanks for the precise microwave instructions! My little apartment is unbearable when I use the gas oven in the summertime, and the prep time being cut in half is also great.


Thursday 13th of April 2023

Should you thaw before cooking?

Judith Olson

Monday 17th of October 2022

Is it all right to freeze Costco's meatloaf with mashed potatoes? And if so will it affect the taste/flavor? Any special cooking instructions required If the product has been Frozen?

Christina Meeket

Sunday 12th of February 2023

@Judith Olson, this is an old question so maybe you don't need an answer anymore, but I almost always freeze the meatloaf/mashed potatoes from Costco and it always comes out the same as when I've cooked it straight away. I'll take it from the freezer and put in the fridge about 36 hours before I plan to cook it. I purchased it last week. On Saturday morning I took it out of the freezer and placed in the fridge. Today, Sunday evening around 5:30pm, I took it out of the fridge and put it on the counter and left it there for about 30 minutes, as I preheated the oven and prepared vegetables for dinner (fresh broccoli from Costco and a whole spaghetti squash). I put it in the oven at 375, as per the instructions and it came out perfectly.

Larry Emlaw

Tuesday 30th of August 2022

If this is pre-cooked meatloaf why is it necessary to bring it to 165 degrees? Somebody 'splain me this. Why not 105 or 110, the temp at which you normally eat food?

Mohamed Shili

Wednesday 31st of August 2022

I quote " The State Sanitary Code now requires that the whole mass of all prepared and refrigerated potentially food that is to be reheated be reheated to 165°F or above within two hours, and held above 140°F until served."

Even if it's precooked and frozen or refrigerated, you need your food to reach an internal temperature of 165 F to assure it's safe for you to cosume.