How to Make Savory French Onion Meatloaf

Ingredients

• 1 tablespoon olive oil
• 2 medium onions, thinly sliced
• 2 cloves garlic, minced
• 1 pound ground beef
• 1 cup breadcrumbs
• 2 large eggs
• 1 tablespoon Worcestershire sauce
• 1 teaspoon dried thyme
• 1 teaspoon salt
• ½ teaspoon black pepper
• 1 cup grated Gruyère cheese, plus additional for topping
• ¼ cup ketchup
• 1 tablespoon brown sugar
• 1 tablespoon Dijon mustard