Pat dough into 12x16-inch oval on baking sheet sprayed with cooking spray. Indent dough, about 3 inches from one end of oval, for the mummy's head. Let rise in warm place 20 minutes or until doubled in volume.
Heat oven to 375°F Brush dough with egg. Bake 18 to 20 minutes or until golden brown and sounds hollow when tapped lightly. Pull apart string cheese to make about 16 strips; arrange on bread for mummy's wrappings. Bake 1 to 2 minutes or just until cheese is melted; cool slightly. Press olives into bread for the mummy's eyes; cool completely.
Meanwhile, mix sour cream and dressing in medium bowl until well blended. Stir in next 5 ingredients. Refrigerate 30 minutes or until ready to serve.
Use sharp knife to remove bread from top of mummy's body; scoop out bread from center leaving a thin shell on bottom and sides. (Reserve bread top. Discard removed bread or reserve for another use.) Fill bread with spinach dip just before serving; cover with top of bread. Serve with WHEAT THINS.
KRAFT KITCHENS TIPS:
Serve with WHEAT THINS Crunch Stix or TRISCUIT Thin Crisps.
Substitute whole cloves, raisins, or peppercorns for the sliced black olives.