1. Heat a skillet coated in cooking spray and cook onion 5 minutes until golden brown. Remove from heat and allow to cool.
2. Combine Onions, bread crumbs and next seven ingredients. Mix well in a large bowl.
3. With a number 8 Scoop place a scoop of mixture evenly on a parchment lined sheet.
4. Cover each loaf with remaining ketchup. Bake at 350 for 30 minutes or an internal temp of 165.
5. Place in serving dish.