Preheat oven to 425°. In a large bowl, whisk flour and cornmeal. In another bowl, whisk buttermilk, egg substitute, 2 tablespoons oil, honey and mayonnaise. Pour remaining 1 tablespoon oil into an 8-in. cast-iron or other ovenproof skillet; place skillet in oven 4 minutes., Meanwhile, add buttermilk mixture to flour mixture; stir just until moistened. Fold in corn, cheese and peppers., Carefully tilt the skillet to coat bottom with oil; add batter. Bake until a toothpick inserted in center comes out clean, 20-25 minutes. Serve warm., Note: As a substitute for 1 cup of self-rising flour, place 1 1/2 tsp of baking powder and 1/2 tsp. of salt in a measuring cup. Add all-purpose flour to measure 1 cup.