Scallion and Coconut Rice with Pork

Name: Scallion and Coconut Rice with Pork
Ingredients: 4 large scallions, thoroughly washed, trimmed just above root; 3 tablespoons canola oil, divided; 3/4 pound ground pork; 1 tablespoon good quality fish sauce (like Red Boat or Three Crabs); 1 tablespoon plus 1 teaspoon minced ginger; 1 tablespoon plus 1 teaspoon minced garlic; 1 1/4 cups medium grain Calrose rice; 1 1/4 cups chicken stock; 3/4 cup coconut milk (shake can before opening); 1 head of baby bok choy (optional), end trimmed, leaves separated, washed, and sliced crosswise; 1 wedge of lime, for finishing