Salmon with Coconut-Miso Sauce

Name: Salmon with Coconut-Miso Sauce
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Cuisine: Asian
Ingredients: 2 tablespoons canola oil; 1 medium red onion, halved and sliced 1/2-inch thick (1 1/2 to 2 cups); 3 tablespoons finely minced fresh ginger; 5 garlic cloves, thinly sliced; Kosher salt and black pepper; 1/4 cup white miso; 1 cup low-sodium chicken broth; 1 (13.5 ounce) can full-fat coconut milk; 1 teaspoon fish sauce, plus more to taste; 12 ounces fresh green beans, trimmed; 1 pound salmon fillet, skin removed and cut into 2-inch pieces; 1 tablespoon fresh lime juice, plus lime wedges for serving; Steamed jasmine rice, for serving; Chopped fresh Thai basil, for serving; Chopped fresh cilantro, for serving