Here are three slogans I know can work with my Wasabi Sunflower Seeds product.
Feel The Burn - People buy this product because they enjoy the taste and spiciness of Wasabi. Why not have a slogan that enhances that need?
Try It, You'll Like It - Some people have trouble trying new things. I would use this in the hopes that it will entice people to give it a try.
Behold, The Spice - I like it because it reminds me of the movie Dune, and I really liked it.