Preheat oven to 350˚F. Spray a medium skillet with non-stick cooking spray and heat over medium-high heat. Add onions and sautee for 5 minutes until lightly browned; allow to cool.
Combine 2 tablespoons ketchup with ½ teaspoon Tabasco. Brush over meatloaf tops.Bake for 30 minutes or until thermometer registers 165˚F internal temperature.
Makes 6 mini loaves at 142 calories each.