Heat a large 12 inch skillet on medium high heat and add the olive oil and ground beef, cook until browned and crumble.
Add in the taco seasoning and salsa and cook another 2-3 minutes, remove from heat.
Lightly brush the melted butter on each wonton wrapper and press each one into the muffin cups. Bake for 5-7 minutes or just until lightly browned.
Fill each wonton cup with the taco mixture. I use a small cookie scoop for this, but a spoon will also work.
Divide the cheese evenly on top of the taco cups evenly.
Bake for another 10-12 minutes or until cheese is melted, careful not to burn them they can brown fast.
Remove from the oven and top with a dollop of sour cream, pico de gallo and a sliced olive.
Notes
80/20 ground beef can be used, but leave out the olive oil and drain any extra fat before adding the seasoning and salsa. Ground chicken or turkey can also be used.
Freeze any leftover wonton wrappers for another use.
These wonton cups are best served right away, but leftovers can be stored in an airtight container for 2-3 days.