Lasagne - Pinch Of Nom

Ingredients

• 400 g 5% fat beef mince
• 1 medium carrot (peeled and chopped)
• 1 stick celery (chopped )
• 1 medium onion (peeled and diced)
• 4 large mushrooms (sliced)
• 1 courgette (diced)
• 1 red pepper (deseeded and diced)
• 1 green pepper (deseeded and diced)
• 70 g tomato puree
• 400 g chopped tomatoes
• 200 ml boiling water
• 2 beef stock cubes
• 1 tbsp Worcestershire sauce or Henderson's relish
• 1 tbsp mixed herbs
• 2 cloves garlic (peeled and crushed)
• 500 g fat free natural yogurt
• 1/2 tsp mustard powder
• 120 g reduced fat Cheddar cheese (grated)
• 2 eggs
• 6 lasagne sheets