Heat oven to 350 degrees. Combine oat bran, oats, dry milk, honey, sunflower seeds, oil, water, orange peel, and vanilla. Spread in a 13x9 inch pan. Bake 20-25 minutes or until golden brown., stirring once after 10 minutes. Stir in banana chips and raisins. Cool completely. Store in air tight container up to 1 week, maybe served warm or cold. Use as a topping.