New classic meatloaf

Ingredients

• 1 tablespoon olive oil
• 1 small onion, diced (1 cup)
• 8 ounces white button mushrooms, finely diced
• 1 small carrot, finely grated
• 2 tablespoons tomato paste
• 1/2 teaspoon dried thyme
• 1 clove garlic, minced
• 1 1/2 pounds extra-lean ground beef (90 percent lean or higher)
• 3/4 cup quick-cooking oats
• 2 large eggs, beaten
• 2 teaspoons Worcestershire sauce
• 3/4 teaspoon salt
• 1/2 teaspoon freshly ground black pepper
• 1 tablespoon unsulfured molasses
• 1 tablespoon yellow mustard