Preheat grill over medium-high heat.
Grill steaks to your desired doneness. Cut steak into 4 pieces after grilling. Season each with 1 teaspoon seasoned salt and pepper and skewer. Cut onion into chunks and place 2 chunks per skewer. Cut potato into chunks and place 2 chunks per skewer and add the grilled shrimp, 4 per skewer.
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