Grilled Cheeseburger Kebabs

Ingredients:

• 450 g ground beef, preferably 20% fat
• 2 tsp Worcestershire sauce
• 3 tbsp ketchup + extra for serving
• 4 slices American cheese
• 4 slices of white sandwich bread
• 4 small cubes of iceberg lettuce (about 4 cm each), from 1 head of cabbage
• 8 cherry tomatoes
• 12 slices of pickled cucumbers
• Mustard, for serving
• Special equipment: 4-6 flat metal skewers 30 cm long, heat-resistant foil

Preparation:

1. Preheat the grill to medium heat. Lightly coat the grill grate with vegetable oil.
2. Spray a plate with cooking spray. In a large bowl, combine the ground beef, Worcestershire sauce, 1 tablespoon ketchup, 1 teaspoon salt, and 1/4 teaspoon black pepper. Gently mix with your hands, being careful not to compact the ground beef. Divide the meat mixture into 8 equal-sized balls. Thread the balls onto two 12-inch flat metal skewers, 4 balls per skewer, spacing them apart. Place the skewers on a plate and spray them with cooking spray. Refrigerate until ready to grill.
3. Place 2 skewers on the grill and cover. Grill, turning the skewers, until cooked through, about 12 minutes. Remove from the grill and let cool slightly. Increase the grill temperature to medium-high. Brush the meatballs on all sides with the remaining 2 tablespoons of ketchup and grill until glazed.
4. Meanwhile, make 2 sandwiches, sandwiching 2 slices of American cheese between 2 slices of bread. Trim the crusts, then cut each sandwich into 4 equal-sized squares.
5. Drizzle the iceberg lettuce leaves with a little oil and season with salt and black pepper.
6. Thread each of the four skewers, in order: a cherry tomato, a cheese sandwich cube, a meatball, another cheese sandwich, a second meatball, lettuce, 3 pickle slices, and a cherry tomato.
7. Place a piece of foil large enough to hold 4 skewers. Spray the foil with cooking spray and place it on the grill. Arrange the skewers on the foil. Cover and cook for 2 minutes, then carefully flip the skewers. Cover the grill again to melt the cheese, and cook the kebabs on the other side for about 1 minute. Serve the kebabs with ketchup and mustard.