How do you cook Costco lasagna?

To cook Costco lasagna, preheat your oven to 375°F (190°C). Remove the lasagna from its packaging and place it in a baking dish if it's not already in one. Cover it with foil and bake for about 50 minutes, then remove the foil and bake for an additional 10-15 minutes until the cheese is bubbly and golden. Let it cool for a few minutes before serving.