Spray piece of parchment paper lightly with non-stick cooking spray.
Roll loaf or combined dinner rolls into a 12×16-inch rectangle. Cover with plastic wrap and let rest 10-15 minutes.
In a large bowl, combine spaghetti noodles, sauce and cheeses. Stir to combine.
Remove wrap from dough. Place spaghetti lengthwise in a 4-inch strip down center of dough.
With a pizza cutter, cut smaller 1 inch strips on each side of the dough to be able to bring across and twist in a braid.
Lift braid with both hands and place on a large, sprayed baking sheet.
Melt butter and add the parsley and garlic salt. Brush over the bread.
Bake at 350°F 30-35 minutes or until golden brown. Cool slightly and slice to serve.