Black pepper provides a different kind of heat than chile peppers, but people who are sensitive to spices may still find this too hot. So start with the lesser amount of black pepper and add more to taste. Those of you who like fiery dishes may want to increase the chile sauce, but try not to overpower the black pepper.
Use whatever green vegetables you like instead of the kale and asparagus. Bok choy and broccoli is a delicious combination.