Preheat oven to 425°.
Lightly spoon flour into a dry measuring cup; level with a knife. Combine flour, cornmeal, baking powder, baking soda, and salt in a large bowl; make a well in center of mixture. Combine buttermilk, honey, butter, peppers, and egg in a bowl; add to flour mixture. Stir just until moist. Spoon batter into an 8-inch square baking pan coated with cooking spray. Bake at 425° for 18 minutes or until a wooden pick inserted in center comes out clean.