Preheat the oven to 350 degrees F.
In a large pan, heat the olive oil over medium-high heat. Add the onion and garlic and cook until the onions begin to become translucent.
Add the ground turkey and cook until browned, crumbling while doing so.
Add the taco seasoning and stir until all of the meat is coated.
Add the cream cheese and stir until it has melted. Add the salsa and shredded cheddar, stir to combine, and turn the heat down to low.
While the taco filling simmers, press the wonton wrappers into a mini muffin tin. Spray them lightly with cooking spray. Bake for 8 minutes. Remove from the oven.
Spoon a bit of the taco mixture into each of the cups and top with a bit more cheese. Bake for 7 minutes, or until the cheese melts. Top with a dollop of sour cream and some green onions.