Follow steps from this recipe - http://www.taste.com.au/recipes/23005/lasagne
Feel free to add any vegetables (or omit mushrooms I added in the above ingredients) at the mince cooking stage. Carrot, spinach, zuchini, maybe some pearl barley? The choice is yours! I also had added about 90g of cheese (I had a mixed 4 cheese packet) into the bechamel, and did not measure the amount of cheese to go on top.
Spray slow cooker insert with cooking oil.
Layer ingredients into slow cooker insert (don't top with cheese yet). USE A TEA TOWEL UNDER THE LID!
Cook for 2-2.5 hours on HIGH or until knife is inserted into lasagne with extreme ease.
Cover lasagne with cheese.
Cook for a further 30 minutes or until cheese is melted.
Serve with salad so at least something healthy is on your plate :)