1. For dip, in a large bowl, combine the first six ingredients. Cover and refrigerate until serving.
2. In a small bowl, combine the cheese, butter, dill and garlic powder. Cut each biscuit in half; arrange half of the pieces in an ungreased 10-in. fluted tube pan. Sprinkle with half of the cheese mixture. Repeat layers.
3. Bake at 400° for 20-30 minutes or until golden brown. Cool for 1 minute before inverting onto a serving platter. Serve warm with spinach dip. Yield: 12-16 servings (3 cups dip).