Slow cooker lentil curry

Slow cooker lentil curry

Ingredients  1 large onion  2 peppers  1 carrot  3 garlic cloves  200g dry red lentils  1 tbsp chilli powder  1 tsp cumin  2 tsp smoked paprika  2 tins chopped tomatoes  2 tbsp tomato puree  2 vegetable stock cubes  450ml water black pepper to taste  2 tins kidney...