Whole Wheat Casserole Bread

INGREDIENTS

• 1 package active dry yeast
• 3/4 cup warm water (105째 to 115째)
• 1 cup all-purpose flour, divided
• 1 cup whole wheat flour
• 2 tablespoons sugar
• 2 tablespoons frozen egg substitute, thawed
• 1 1/2 tablespoons reduced-calorie margarine, melted
• 1/2 teaspoon salt
• Vegetable cooking spray