This lentil stew is an excellent slow cooker recipe. Just mix the ingredients and let them cook. Delicious! Spiced with cumin and coriander and flavored with tomato paste, this veggie-filled lentil stew will keep you warm for winter and all year round. Good with a loaf of freshly baked rustic bread, and it's vegetarian and vegan friendly. Serve with a piece of bread for dipping.