In a colander, rinse the thawed spinach, then squeeze the leaves and pat dry with paper towels.
In a large bowl, mix together cream cheese and sour cream. Add the spinach, parmesan cheese, scallions, salt, pepper, garlic powder, and onion flakes and mix until thoroughly blended.
Place dip in the refrigerator for an hour or until ready to serve.
Using a bread knife, prepare a bread bowl by slicing the dough's top 1 ½ inch layer. (Just before guests arrive so the bread is fresh).
Cut around the edges of the loaf, hollowing out the center for a dip while leaving an inch of the bread on the bottom and sides. Cut removed bread into bite-size pieces for dipping.
Cut five thin slices of red bell pepper and set aside.
Remove the dip from the fridge and scoop it into the bread bowl.
Use one slice of red bell pepper in the center of the bread bowl, then lay the other slices across it about ½ - 1 inch apart, creating the look of football laces.