In a small bowl, mix together miso paste, soy sauce, honey, rice vinegar, ginger, and garlic to make the glaze.
Place the salmon fillets on a baking sheet lined with parchment paper. Brush the miso glaze over the salmon fillets.
Bake the salmon in the preheated oven for 12-15 minutes, or until cooked through.
While the salmon is baking, rinse the quinoa under cold water. In a saucepan, combine quinoa and water or broth. Bring to a boil, then reduce heat and simmer for 15 minutes, or until quinoa is cooked and liquid is absorbed.
In a large bowl, combine cooked quinoa, diced red bell pepper, cucumber, and cilantro.
In a small bowl, whisk together sesame oil, lime juice, salt, and pepper. Pour the dressing over the quinoa salad and toss to combine.
Divide the quinoa salad onto plates and top each with a miso glazed salmon fillet.
Sprinkle sesame seeds over the salmon fillets for garnish.
Serve the miso glazed salmon with quinoa salad immediately.