First of all...No, hemp hearts are not Cannabis. They will not get you high and they are not illegal, at least not in my state. They are made from the seeds of the hemp plant, which is used in rope and twine production. Hemp hearts are high in Omega 3s and 6s, as well as other good nutrients. You can find them at co-ops and health food stores, as well as online, (try Nuts.com.)
Hemp hearts taste great sprinkled on salads and cooked veggies. They can also be used to make yummy salad dressings. I really like this one, because it doesn't use fattening nuts, or oils and comes out really creamy:
https://simple-veganista.com/creamy-...herb-dressing/ You can make it a little thicker to use as a sandwich dressing and it keeps for several days in the refrigerator.