Cheeseburger Stuffed Meatballs

Bahan-bahan (24 porsi)

• 2 pounds lean ground beef
• ⅔ cup seasoned bread crumbs
• 2 tablespoons grated onion (see note)
• 1 teaspoon yellow mustard
• 1 tablespoon Hellmann's ketchup
• 3 tablespoons mayonnaise
• 1 egg
• 6 cheddar cheese sticks (cut into 4 pieces each)
• dill pickles (tomatoes, lettuce for topping)
• Hellmann's Spicy Dipping Sauce & Hellmann's Burger Sauce (for dipping)