Meanwhile, in 10-inch skillet, cook bacon until crisp; drain on paper towels. Crumble bacon; set aside. Cook onion in bacon drippings over medium heat, stirring occasionally, until tender. In large bowl, beat remaining 8 eggs, the pepper and remaining 3/4 cup half-and-half with whisk; stir in remaining 1 1/4 cups cheese, the bacon, onion and spinach. Pour over crust.