Put the frozen spinach in a colander and run water over it until it is thawed out (or put it in the refrigerator ahead of time to thaw it out). While you are doing this, cut the top of the bread off to make a bowl. Chop up the top of the bread and save it to use for the dip. Scoop out the bottom part of the bread to make a place for the dip. Wring out the spinach with your hands to get out all the water. Mix all the ingredients together (except the bread) and put in the refrigerator for at least 4 hours. Fill the bread bowl with the dip and serve with the bread, crackers or vegetables.
Toss together the spinach leaves, salad greens and other salad ingredients in a large bowl. For dressing, combine the orange juice, honey, mustard, poppy seeds and salt and pepper to taste in a small bowl until well mixed. Slowly drizzle in the olive oil, whisking constantly until the dressing is mixed. Toss the dressing with the salad or serve on the side.