I just made a vegetarian lentil soup and the taste is sorta blah. I used onions, carrots, a potato, a parsnip, garlic, water and green lentils. For spices I used salt, pepper, a bay leaf and cumin, I sweated the onions and garlic in olive oil to start and added the spices before adding other indigents and water.And then simmered for two hours. What additional spices would you suggest? I don't like to add too much salt or red pepper.