Start by marinating the shrimp with soy sauce and cornstarch in a bowl, then let it rest for 15 minutes.
In a large skillet or wok, heat sesame oil over medium-high heat until shimmering.
Add the marinated shrimp to the skillet, cooking until they turn pink and opaque, about 2-3 minutes per side. Remove and set aside.
In the same skillet, add the chopped onions and garlic, sautéing until the onions become translucent.
Add the diced red bell pepper and cook for 2-3 minutes, just until it softens slightly.
Stir in the cooked jasmine rice, breaking up any clumps with a spatula to ensure even frying.
Pour in the remaining soy sauce and sriracha, stirring well to combine all ingredients. Cook for an additional 5 minutes.
Finally, fold in the cooked shrimp and sliced green onions, mixing gently to combine.
Taste and adjust seasoning as needed before serving hot, topping with additional green onions if desired.