Virtually fat free Lasagne

This is really low in fat and packed with vegetables that help to speed up weight loss.
Ingredients (Serves 4)
500g of minced beef (5% fat content)
1 large onion
2 cloves of garlic
2 sticks of celery
2 carrots
1 tin of chopped tomatoes
2 stock cubes
Italian mixed herbs
Tomato puree
Lasagne sheets
1 egg
200g fat free greek yoghurt
Salt and pepper to season

Method
Dice the carrots, onion and celery and finely chop the cloves of garlic then fry them off in a large pan using fry light spray. Add the minced beef, the stock cubes and herbs and cook until the mince has browned. Deglaze the pan with a small amount of water and then add the tin of tomatoes. Cook for about a hour (this can be reduced to 30 minutes in a pressure cooker) until the mince is nice and tender. Thicken with the tomato puree and season to taste with salt and pepper.

Using an oven dish start to build the lasagne by layering the lasagne sheets then the meat ragu. I normally end up with 3 layers of each and then top with a final layer of lasagne sheets.

Beat the egg and then add the yoghurt and mix with some salt and pepper. Pour this over the lasagne to form the topping. Bake in the oven at 180C for about 40 minutes. Serve withsalad. The lasagne can be reheated if any is left over and it makesa great lunch to take to work.