1 tablespoon soy sauce
1 tablespoon mild honey
2 tablespoons Asian fish sauce, divided
1 pound flank steak
3 tablespoons vegetable oil, divided
2 large shallots, thinly sliced (1 cup)
1 tablespoon finely chopped peeled ginger
1 1/2 teaspoons Thai green-curry paste
1 3/4 cups reduced-sodium beef broth
1 tablespoon fresh lime juice
1 red bell pepper, cut into 1/4-inch strips
1 bunch scallions, trimmed and cut into 3-inch pieces
3/4 pound dried Asian egg noodles
Equipment: a large (2-burner) ridged grill pan (preferably cast-iron)
Garnish: lime wedges; Asian fish sauce