Morton & Bassett Mustard Seed comes from the mustard plant and is a popular ingredient in a variety of American and Indian dishes. Crush these whole brown seeds to sprinkle them on meat and seafood, or add them to salads, soups and gravies for a burst of flavor. A single 1/3 tsp. Serving contains zero calories and no fat and is naturally preservative-free. Bottle contains 2.7 oz. of spice.