INGREDIENTS
- cooking spray
- ¾ cup minced onion
- ½ cup finely chopped bell pepper
- ½ cup milk
- 2 large eggs
- 2 cloves garlic, minced
- ¾ cup ketchup, divided
- 2 tablespoons chopped fresh parsley
- 4 teaspoons Worcestershire sauce, divided
- 2 teaspoons minced fresh thyme
- 2 teaspoons Dijon mustard
- ¾ cup seasoned bread crumbs
- 2 pounds ground sirloin
- 1 ½ teaspoons kosher salt
- ¾ teaspoon ground black pepper
- 2 teaspoons balsamic vinegar
DIRECTIONS
- Preheat the oven to 350 degrees F (175 degrees C). Lightly coat a 9x5-inch loaf pan with cooking spray.
- Combine onion, bell pepper, milk, eggs, garlic, 2 tablespoons ketchup, parsley, 3 teaspoons Worcestershire sauce, thyme, and Dijon in a large bowl and mix well. Stir in bread crumbs. Add ground sirloin, salt, and pepper; mix until just combined. Form mixture into a loaf shape and fit into the prepared pan.
- Combine remaining ketchup with balsamic vinegar and remaining 1 teaspoon Worcestershire in a small bowl. Mix until well combined and spread over the top of the meatloaf.
- Bake in the preheated oven until an instant read thermometer inserted in the center reads 160 degrees F (71 degrees C), about 1 hour. Let stand for 10 minutes before slicing and serving. The longer it sits, the easier it will be to slice.