Ground and whole mustard seed is popular in sauces like Hollandaise, in dressings, and works well with mayonnaise. Strong flavors like grilled and roasted beef, cabbage, strong cheeses, chicken, curries, dals, fish, and seafood, cold meats, rabbit, sausages and barbecue rubs all compliment mustard seeds nicely.
Whole yellow mustard seeds don't have much taste or aroma until they are bitten into or ground. Once opened or bitten into, mustard seeds are pungent, sharp, and earthy.