Line a rimmed cookie sheet with foil. Be sure it’s a size that will fit in your freezer! In a medium sized bowl, whisk together the yogurt, protein powder, honey, vanilla extract, and salt.Using a rubber spatula, spread this evenly onto the cookie sheet, layer should be thin about ½ inch thick.Sprinkle toppings all around, be generous! You want to cover a lot of the surface and around the edges too with the strawberries and pistachios. Freeze for 3-4 hours or until frozen. Break apart with hands or cut with a knife and enjoy right away. Store in a plastic baggie in the freezer.