Pour 1 cup water into a multi-functional pressure cooked and place a steamer basket inside. Place frozen shrimp in the steamer basket. Close and lock the lid. Select high pressure according to manufacturer's instructions; set timer for 0 minutes. Allow 10 minutes for pressure to build.
Meanwhile, make the sauce by whisking cornstarch and cold water together until smooth. Add soy sauce, honey, garlic, oil, and Sriracha sauce. Whisk again.
Release pressure carefully using the quick-release method according to manufacturer's instructions, about 2 minutes. Unlock and remove the lid. Remove the steamer basket and set shrimp aside. Drain water from the pot.
Select Saute function. Pour sauce into the pot and cook until thickened, about 2 minutes. Cancel Saute function. Stir in shrimp until evenly coated. Transfer to serving plates and garnish with green onions.