Make it ahead: Prepare up to 1 day ahead. Cool. Cover with foil. Store in the fridge. To reheat, preheat oven to 180C. Cut into serving pieces in the dish. Cook, covered, for 45 minutes or until heated through.
Freezing tip: Make the lasagne in a freezerproof dish and cool. Cover with 2 layers of plastic wrap and 1 of foil. Freeze for up to 3 months. Thaw overnight in fridge. Discard plastic wrap and replace the foil. Reheat as above.
Credit : https://www.taste.com.au/recipes/lasagne-4/089773d8-31c5-41a3-b05c-0ce2419d7414