Place thawed spinach into a strong kitchen towel and wring out all of the moisture. Transfer drained spinach into a large bowl.
Add remaining ingredients to the spinach and stir together until everything is combined. Cover dip and refrigerate at least 1 hour. Serve cold or warm, and in a bread bowl, if desired. Store leftovers covered tightly in the refrigerator up to 4 days.
All nutritional values are approximate and provided to the reader as a courtesy. Changing ingredients and/or quantities will alter the estimated nutritional calculations.