Heat 1 tablespoon of the oil in a large skillet over medium-high heat. Add the beef and cook, stirring occasionally, until browned, about 10 minutes; drain on paper towels. Meanwhile, in a medium bowl, stir together the bean paste, tamari, vinegar, coconut sugar and five-spice powder. Set aside.
In the same skillet, heat the remaining 1 tablespoon oil over high heat. Add the shishito peppers, jalapenos, celery, carrot, scallion and garlic and cook, stirring constantly, until lightly charred, about 1 minute. Stir in the beef and the bean paste mixture and cook for 1 minute more. Season with salt.