Heat the oil in a large pot over medium heat. Add the sausage and stir-fry for 3 minutes, breaking it up as it cooks. Add the onion and celery and stir-fry for 5 more minutes. Add the chicken stock, bring to a boil, decrease the heat, and simmer for 10 minutes. Add the bamboo shoots, mushrooms, and coconut milk. Simmer for 2 more minutes. Add the lime juice and taste for salt and pepper. Serve garnished with green onions and cilantro leaves.
Recipe courtesy of Bruce Aidells' Complete Sausage Book (10 Speed Press, 2000)