Spinach-And-Onion Bread
["2 chopped onions", "2 Tbsp. olive or vegetable oil", "3 c. buttermilk baking mix", "3/4 c. milk", "1 egg, lightly beaten", "1 (10 oz.) bag fresh spinach, rinsed and chopped"]
["Preheat oven to 350\u00b0.", "Coat 8-inch round baking pan with nonstick cooking spray.", "Set aside.", "In large skillet, saute onions in oil 5 minutes until very tender.", "Set aside."]
["onions", "olive", "buttermilk baking mix", "milk", "egg", "fresh spinach"]