Preparation Mix together soy, honey, 1 tablespoon fish sauce, and 1/4 teaspoon salt in a shallow baking dish, then add steak and turn to coat. Marinate at room temperature 20 minutes. While steak marinates, heat 2 tablespoons oil in a small heavy saucepan over medium-high heat until it shimmers, then cook shallots, stirring occasionally, until browned well, about 8 minutes. Add ginger and curry paste and cook, stirring occasionally, 1 minute, then add broth and simmer 5 minutes. Stir in lime juice, remaining tablespoon fish sauce, and salt to taste and keep warm, covered. Heat grill pan over medium-high heat until hot, then lightly oil. Grill steak, turning once, about 8 minutes total (for rare). Transfer to a cutting board and let stand 5 minutes. Meanwhile, toss bell pepper and scallions with remaining tablespoon oil, then grill, turning frequently, until softened, about 5 minutes. Transfer to a large bowl. While steak stands, cook noodles in a pasta pot of boiling unsalted water until al dente, 4 to 7 minutes. Drain well, then add to vegetables and toss well. Divide noodles among 4 deep bowls and top with broth. Cut steak in half lengthwise, then thinly slice across the grain and serve on top of noodles.
Preparation Mix together soy, honey, 1 tablespoon fish sauce, and 1/4 teaspoon salt in a shallow baking dish, then add steak and turn to coat. Marinate at room temperature 20 minutes. While steak marinates, heat 2 tablespoons oil in a small heavy saucepan over medium-high heat until it shimmers, then cook shallots, stirring occasionally, until browned well, about 8 minutes. Add ginger and curry paste and cook, stirring occasionally, 1 minute, then add broth and simmer 5 minutes. Stir in lime juice, remaining tablespoon fish sauce, and salt to taste and keep warm, covered. Heat grill pan over medium-high heat until hot, then lightly oil. Grill steak, turning once, about 8 minutes total (for rare). Transfer to a cutting board and let stand 5 minutes. Meanwhile, toss bell pepper and scallions with remaining tablespoon oil, then grill, turning frequently, until softened, about 5 minutes. Transfer to a large bowl. While steak stands, cook noodles in a pasta pot of boiling unsalted water until al dente, 4 to 7 minutes. Drain well, then add to vegetables and toss well. Divide noodles among 4 deep bowls and top with broth. Cut steak in half lengthwise, then thinly slice across the grain and serve on top of noodles.