Wash the kale, spinach, and cucumber under cold water. Roughly chop the greens and chop the cucumber and apple into smaller pieces.

Peel the lime if desired, then cut it in half and set aside.

Place kale, spinach, apple, cucumber, and lime into the juicer. Process for 30-45 seconds until smooth.

If you prefer a smoother juice, strain the mixture through a fine mesh strainer or nut milk bag.

Pour the juice into a glass and garnish with a slice of lime if desired. Serve immediately for the freshest taste.