In a mixing bowl, combine Greek yogurt, peanut butter, maple syrup, and vanilla extract. Mix until creamy.
Line a baking sheet with parchment paper. Scoop about 1 tablespoon of the Greek yogurt mixture onto the parchment-lined baking sheet at a time until all the mixture is used. To make it easier, use a 1 tablespoon cookie scoop. Place the bites in the freezer for about 4 hours.
Once the Greek yogurt bites are frozen, add the chocolate chips and avocado oil to a microwave-safe bowl. Melt the chocolate chips by heating in 30-second intervals in the microwave, stirring well in between, until it's fully melted.
Dip the frozen Greek yogurt bites in the melted chocolate until they are coated in chocolate. Sprinkle flaky sea salt on top of the chocolate coating.
