what temperature to cook frozen lasagna
Bake frozen lasagna at a medium-high temperature. If you use a conventional oven, set it to 400 degrees Fahrenheit. To cook the lasagna in the same amount of time in a convection oven, you only need to set it to 350 F because the fan circulates the oven's heat more efficiently.ake Time. One major advantage of frozen lasagna is that you can take it right off the shelf of your freezer and bake it, from frozen, in a pre-heated oven. There is no need to thaw it first.