Heat oven to 425°F. Line 15x10x1-inch pan with cooking parchment paper. In medium bowl, mix orange juice, brown sugar, orange peel, ginger and garlic. Add scallops; toss to coat.
Place 1 scallop in each mushroom cap. Wrap each with 1 bacon slice, enclosing scallop. Secure with toothpick. Dip in orange juice mixture; place in pan.
Bake 8 to 10 minutes or until mushrooms are tender and scallops are opaque. If desired, replace each toothpick with 4-inch wooden skewer.