Red Lentil Lasagne

Name: Red Lentil Lasagne
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: Italian
Ingredients: 1 tbsp olive oil; 1 onion diced; 1 carrot shredded; 75 g button mushrooms sliced; 100 g red split lentils; 450 ml vegetable stock; 2 tbsp tomato puree; 800 g 2 x 400g tins of chopped tomatoes; 3 cloves garlic crushed; Pinch of mixed herbs; Freshly ground salt and pepper; 20 g corn flour mixed with 2 tbsp. cold water; 300 ml skimmed milk; 40 g low fat grated cheddar cheese; 7 dried sheets of whole wheat lasagne; 80 g low fat grated cheddar cheese