In a small bowl, combine the sliced onion with the lime juice, vinegar, and water. Let it sit while you prep the cabbage and carrot.
½ red onion, 2 limes, 3 tablespoons white vinegar, 2 tablespoons hot water
Rinse the shredded cabbage and drain well using a colander.
½ head green cabbage
In a large bowl, toss the cabbage, grated carrot, and onion along with all of its pickling liquid. Season with oregano, salt, and pepper.
1 medium carrot, ¼ teaspoon dried Mexican oregano, 1 teaspoon kosher salt , ½ teaspoon black pepper
Cover and refrigerate for at least 1 hour before serving.
Notes
Add heat: Toss in a thinly sliced jalapeño or a pinch of red pepper flakes.Storage: Keeps in an airtight container in the fridge for up to 5 days. Not freezer-friendly.Nutrition information is an estimate and will vary depending on the brands and ingredients used.