How to cook frozen lasagna from Costco

James Strange

4.20 from 5 votes

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Prep Time 5

Cook Time 1 5

Total Time 1 10

Servings: 6 servings

Course: Main Course

Cuisine: American

Calories: 410

Preheat oven to 375 F. (350F for convection oven).
Remove cardboard sleeve
1 each Costco lasagna.
Cut a 2-inch slit in the film cover
Place the tray onto a cookie sheet on the middle baking rack of your oven
Cook for 55 minutes.
Remove the plastic film from the top of the tray, and cook for 10 more minutes to brown the cheese.
Use an instant-read thermometer to confirm the middle of the lasagna has heated to 165F.
Allow the lasagna to rest for 5 to 10 minutes.