Slow Cooker Lasagne

Ingredients

• Whole wheat lasagne sheets - 6 nos. (105 grams)
• Fresh thyme leaves - 1 tablespoon.
• Balsamic vinegar - 1 tablespoon.
• Vegetable bouillon - 2 teaspoons.
• Tomato puree - 2 tablespoons.
• Chopped tomatoes - 1 can. (400 grams)
• Lean mince beef (5% fat) - 400 grams.
• Garlic cloves - 2 nos. (Chopped)
• Carrots (Finely diced) - 4 nos. (320 grams)
• Finely diced celery sticks - 4 nos. (175 grams)
• Onions (Finely chopped) - 2 nos.
• Rapeseed oil - 2 teaspoons.
• #For the sauce#
• Finely grated parmesan - 15 grams.
• Generous grating of nutmeg.
• Bay leaf - 1 no.
• Wholemeal flour - 50 grams.
• Whole milk - 400 ml.