The carrot-family vegetable can be eaten raw or sauteed ... it's easy to toss into soups and stews. You can freeze fresh celery, but it will soften significantly during the thawing process ...
These make and freeze roasted vegetables are fantastic in quiches, frittatas and ratatouille, or blended into soups and sauces. They will keep in the freezer for up to 3 months.