Place the beef strips in a medium-sized bowl and pour the teriyaki sauce over them. Add 1 tablespoon of ginger, 1 tablespoon garlic and the salt to the bowl and stir to combine. Marinate, refrigerated, while you make the dipping sauce. In a small bowl, combine the remaining ginger, peanut butter and coconut milk in a small bowl and whisk together. Add the sesame oil, soy sauce, brown sugar, lime juice, fish sauce, cayenne pepper and 1 teaspoon garlic to the bowl and whisk to combine. Place the sauce in a serving bowl and garnish with the cilantro and chopped peanuts. To serve the satays, set-up a Hibachi or indoor grill on the dining table with the carrots, celery and shiso around the grill. Remove the beef strips from the refrigerator and use skewers to thread the meat. Have your guests grill the satays themselves over the grill, about 30 seconds to 1 minute on each side for medium-rare. Serve, with the dipping sauce and veggies on the side.