Preheat the Ninja Foodi Grill by placing it on high for the grill function, grill on high for 5 minutes.
Start by using kitchen scissors to cut the lobster, cut down the center of the tail until you reach the fins, do not cut the fins.
Pull apart the tail and use your fingers to bring the meat up to the top and close the shell. When you are cutting it should create a butterfly effect to the meat to allow it to easily be moved to the top of the shell, see video for a tutorial.
In a small dish, melt the butter and add the garlic and parsley, mix it well.
Coat each of the lobster with the butter mixture well with a brush.
Lift the lid to the Ninja Foodi Grill once it's done with the preheat function, then coat the basket with olive oil spray.
Carefully place the lobster tail in the basket.
Evenly coat the lobster tail with olive oil cooking spray.
Grill for 5 minutes or until the meat reaches an internal temperature of at least 145*F.