Cook the noodles according to the package directions. Drain and drizzle with a little sesame oil.
In a small bowl, whisk together the aminos, sesame seeds and half the garlic.
In a large wok or wide, deep skillet over high heat, heat 1 tablespoon of the sesame oil and 1 tablespoon of the olive oil. Add the mushrooms, onion and the remaining garlic and cook, stirring constantly, until browned and softened, about 4 minutes. Transfer the mushroom mixture to a plate and drizzle with a bit of sesame oil.
Add the remaining 1 tablespoon of the sesame oil and 1 tablespoon of the olive oil to the wok and add the bell peppers and carrot. Cook, stirring constantly, until the vegetables start to soften, about 2 minutes. Add the green beans, snow peas and edamame and cook until all the vegetables are just barely cooked through, about 2 minutes.
Add the reserved sesame-garlic sauce, the noodles and spinach and stir-fry just until the greens wilt, 30 seconds. Taste, and add more aminos or soy sauce if desired. Serve hot or at room temperature, with Sriracha for drizzling if desired.