traditional meatloaf recipe

1 1/2 pounds ground beef (preferably 80/20 blend) 1 cup breadcrumbs 1/2 cup finely chopped onion 1/2 cup finely chopped bell pepper 2 cloves garlic, minced 1/4 cup ketchup 1/4 cup milk 2 large eggs, beaten 1 tablespoon Worcestershire sauce 1 teaspoon salt