Prepare the Sauce & Marinate Salmon:
In a small bowl, whisk together soy sauce, honey, rice vinegar, ginger, garlic, and sriracha. Season salmon fillets with salt and pepper. Pour half of the sauce over the salmon and let marinate while you prep the noodles (about 10–15 minutes).
Cook the Noodles:
Cook noodles according to package directions. Drain and toss with sesame oil, garlic, soy sauce, hoisin, rice vinegar, and sesame seeds. Set aside.
Cook the Salmon:
Heat oil in a nonstick skillet over medium-high heat. Cook salmon skin-side down (if using) for 3–4 minutes, then flip and cook another 3–4 minutes or until cooked through. Brush with remaining sauce during the last minute of cooking.
Assemble and Serve:
Divide noodles among bowls. Top with a salmon fillet and garnish with green onions, carrots, or cilantro if desired. Serve warm.