Line a baking sheet with parchment paper.

In a bowl, whisk together the Greek yogurt, honey, and protein powder until smooth.

Spread the mixture evenly onto the parchment, about 1/2-inch thick.

Drizzle the melted peanut butter over the top and swirl gently with a knife.

Sprinkle with chocolate chips and a pinch of sea salt.

Freeze for at least 3 hours, until fully firm.

Break into pieces and store in the freezer until ready to eat.