Legumes look like peas or beans, but lentils are actually seeds. They make a great substitute for meat, because they're high in fiber and protein and low in fat. Lentils also have plenty of folate and potassium. Find dried or canned lentils at grocery stores and specialty markets. Rinse dry lentils and boil for 15 to 30 minutes, whole or split in half, with or without the skin. Include in soups, stews and salads. Or, simply add turmeric, ginger or other seasonings. Delish!