Place the green olives, cubed vegan feta, parsley, garlic, walnuts, olive oil, and lemon juice into a food processor or blender.
Process the mixture until it becomes thick and creamy. Blend briefly to retain a slightly textured consistency, or continue processing for a smoother finish.
Taste the dip, then adjust the seasoning with salt or an additional splash of lemon juice as required.
Spoon the finished dip into a shallow serving bowl.