Cook the noodles according to package directions. Drain and toss with 1 teaspoon sesame oil.
Combine broth and the next 4 ingredients (through Sriracha), stirring with a whisk.
Heat remaining 2 tablespoons oil in a large nonstick skillet over medium-high heat; swirl to coat. Add tempeh, and stir-fry 3 minutes or until lightly browned. Add garlic and shallots; stir-fry 1 minute or until shallots begin to soften. Add eggs; stir-fry for 30 seconds or until soft-scrambled, stirring constantly. Add soy sauce mixture, and bring to a boil. Add noodles and bean sprouts; toss gently to coat. Cook 1 minute or until sauce is thickened.
Remove from heat, and top with cucumber and the next 5 ingredients (through fresh cilantro). Sprinkle each serving with 1 teaspoon dry-roasted peanuts and the juice from 2 lime wedges.