Blend the cottage cheese, eggs, milk, vanilla extract, orange zest, orange juice, and honey until smooth.
Whisk the oat flour, protein powder, baking powder, cardamom, and salt in a bowl.
Stir the blended cottage cheese mixture into the dry ingredients until no dry streaks remain. Rest the batter for 5 minutes.
Heat a lightly buttered nonstick skillet over medium-low heat. Cook each pancake until bubbles form and the edges look set.
Flip and cook for 1 to 2 minutes more, then transfer the pancakes to a serving plate.
Stir the Greek yogurt, honey, orange zest, and orange juice together until smooth.
Drizzle the orange honey yogurt over the pancakes and finish with chopped pistachios and orange zest.