Preheat your oven to 400°F and line a small baking sheet with parchment paper.
In a small bowl, mash the softened grass-fed butter with minced garlic and chopped parsley until well combined.
Shape the garlic butter into a small log, wrap in parchment, and place in the freezer for 10 minutes to firm up.
Butterfly the chicken breast by slicing horizontally almost all the way through, then place the chilled butter log in the center and fold the chicken over to seal completely.
Whisk the egg in one shallow bowl and mix the almond flour, sea salt, and black pepper in a second bowl.
Carefully dip the stuffed chicken into the egg wash, then dredge in the almond flour mixture until fully coated.
Place the chicken on the prepared baking sheet and bake for 20-25 minutes until the crust is golden and the internal temperature reaches 165°F.
While the chicken bakes, steam the green beans until tender-crisp and serve them alongside the finished Chicken Kiev.