4 green onions, thinly sliced, plus more for garnish
Lime wedges, for serving
In a large pot of salted boiling water, cook noodles according to package directions until al dente. Drain and return to pot.
In a small bowl, whisk together Sriracha, lime juice, and soy sauce and set aside.
In a large skillet over medium-high heat, heat 1 tablespoon olive oil. Cook shrimp until pink, about 3 minutes, then transfer to a plate. In same skillet, heat remaining 1 tablespoon olive oil. Cook peppers, cucumber, and green onions until tender, 5 to 6 minutes, then add shrimp, cooked noodles, and sauce and stir until coated.