In a small bowl, whisk together mango puree, soy sauce, honey, ginger, garlic, rice vinegar, and cornstarch until smooth.
Pat the salmon fillets dry with paper towels to ensure a crisp sear.
Heat olive oil in a non-stick skillet over medium-high heat.
Place salmon fillets flesh-side down in the skillet and sear for 4 to 5 minutes until a golden crust forms.
Flip the salmon fillets and pour the mango teriyaki mixture into the skillet.
Reduce heat to medium and simmer for 3 to 4 minutes until the glaze thickens and the salmon reaches an internal temperature of 145 degrees Fahrenheit.
Spoon the thickening glaze over the salmon fillets repeatedly during the final minute of cooking.
Remove from heat and garnish with sesame seeds and sliced green onions before serving.