1Heat oven to 400°F. Spray round pan, 9x1 1/2 inches, with cooking spray. Heat apples, 1/4 cup sugar and 2/3 cup apple juice to boiling in 2-quart saucepan. Cook over medium heat 5 minutes, stirring occasionally.
2Mix 2 tablespoons apple juice and the cornstarch in small bowl. Add to apples; cook and stir until slightly thickened. Remove from heat. Stir in pears. Spoon mixture into pan.
3Mix Bisquick mix, 1/4 cup sugar and the orange peel in medium bowl with fork. Add milk; mix until soft dough forms, adding additional milk if necessary. Do not overmix. Drop dough by 12 heaping teaspoonfuls onto fruit mixture. Sprinkle with 1 tablespoon sugar.
4Bake 25 to 30 minutes or until biscuit topping is lightly browned and fruit mixture is bubbly. Cool 15 minutes before serving.