how long to bake a frozen homemade lasagna?
<answer> 1 1/2 to 2 hours <context> Cook frozen lasagna in an oven preheated to 400 degrees Fahrenheit for 1 1/2 to 2 hours, or until it is heated throughout. Bake it covered for most of the cooking time, removing the cover at the end to allow the top to become golden and bubbly.