Originating from Mesopotamia, lentils are one of the first legumes to have been domesticated. They are the easiest seeds to germinate at home. Lentil seeds have sweet and bitter tastes. How to consume sprouted lentil seeds? Sprouted lentils will bring a very pleasant taste to raw vegetables, purees and soups. Soaking: 1 night Germination: 2-4 days.