How do you properly bake lasagna from frozen to ensure it is cooked thoroughly and delicious?

To properly bake frozen lasagna, preheat the oven to the temperature specified on the packaging. Cover the lasagna with foil and bake for about 1.5 times longer than the recommended cooking time for thawed lasagna. Remove the foil for the last 15-20 minutes to allow the top to brown. Use a food thermometer to ensure the internal temperature reaches 165F to ensure it is cooked thoroughly. Let it rest for 10-15 minutes before serving for best results.