A frozen vegetable croquette is a type of savory snack or appetizer made from a mixture of mashed potatoes, vegetables (such as peas, carrots, and corn), and seasonings that are formed into a patty shape and then coated in breadcrumbs. The croquette is then frozen and can be quickly fried or baked in the oven for a crispy, satisfying snack or side dish. Frozen vegetable croquettes are a convenient and tasty way to incorporate more vegetables into your diet.