Chop the vegetables finely or run them through a food processor until they reach your desired size. Mix the vegetables well so each veggie is evenly distributed in the mixture.
Use it as the flavorful base for your favorite recipes. Mirepoix is best in soups, stir-fries, and casseroles.
To Freeze
Spread the mirepoix in a single layer on a parchment paper-lined baking sheet.
Freeze for at least 2 hours, then pack into freezer bags for long-term storage.
Alternatively, pack single servings into a muffin tin, ice cube tray, or another small container.