1: Cook frozen chopped spinach according to package directions. Cool and squeeze dry. Drain and chop artichoke hearts and water chestnuts. Clean and dice green onions.
2: Combine ALL ingredients in a large bowl.
2: Chill the spinach dip for at least 2 hours or overnight before serving.
3: Serve this classic dip with your favorite dippers, like crackers, Hawaiian bread, or veggies.