Question: how long does it take to cook a frozen lasagne?
Answer: Thaw one entree in the refrigerator or bake it straight from the freezer.
Preheat the oven to 375 degrees.
Remove plastic wrap and foil from baking dish and replace foil. Place dish on a rimmed baking sheet and bake for 1 hour if thawed, 1 1/2 hours if frozen.