Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
Slice the chicken breast into even strips and set aside.
In a shallow bowl, whisk the egg until smooth; in a separate shallow bowl, combine the almond flour, sea salt, black pepper, garlic powder, and smoked paprika.
Dip each chicken strip into the egg wash, then dredge thoroughly in the almond flour mixture until evenly coated.
Place the chicken strips on the prepared baking sheet and bake for 15 to 18 minutes, flipping halfway through, until the coating is golden and the chicken is cooked through.
While the chicken bakes, whisk together the Greek yogurt, Dijon mustard, lemon juice, and finely chopped chives in a small bowl.
Serve the warm, crispy chicken tenders immediately with the zesty yogurt dip on the side.