Preheat the oven to broil.
Add the butter, olive oil, and garlic cloves to a small pan over medium-low heat. Let this hang out while you prepare the shrimp. If it appears to be too hot or the garlic starts to brown, turn the heat down.
Peel and devein your shrimp. Thoroughly dry them with paper towels and set aside.
Remove the garlic from the butter mixture and remove the pan from the heat.
Add the Worcestershire, Dijon, and Sriracha sauce and whisk to combine. Set aside to cool.
Spray two 6-inch, oven-safe ramekins with nonstick cooking spray and arrange the shrimp in a single layer.
Once the sauce has cooled, liberally brush the shrimp with the sauce, making sure to use it all.
Place the ramekins on a baking sheet and place the pan in the oven on the highest rack, which should be about 4" under the broiler.
Broil for 3 - 4 minutes or until the shrimp is opaque and firm. Do not overcook!
Remove the pan from the oven and carefully remove the ramekins from the pan.
Sprinkle with a few green onions and serve with some toasted bread to dip in the sauce. Enjoy!