Diner Meat Loaf 'Muffins'

INGREDIENTS

• 1 teaspoon olive oil
• 1 cup finely chopped onion
• 1/2 cup finely chopped carrot
• 1 teaspoon dried oregano
• 2 garlic cloves, minced
• 1 cup ketchup, divided
• 1 1/2 pounds ground beef, extra lean (raw)
• 1 cup finely crushed fat-free saltine crackers (about 20)
• 2 tablespoons prepared mustard
• 1 teaspoon Worcestershire sauce
• 1/4 teaspoon freshly ground black pepper
• 2 large eggs
• Cooking spray