In a wok or deep skillet over medium-high heat, add oil and when hot add carrots and sauté for 2 minutes. Add celery and sauté for 2 minutes. Add red pepper and sauté for 2 minutes. Add chicken and cook until no longer pink, about 2 minutes. Just before chicken is done, add ginger and garlic; sauté for 30 seconds. Crack some black pepper and add liquid aminos with rice vinegar; stir. Add bean sprouts and green onions; mix and cover for 3-4 minutes.