Preheat oven to 350° Fahrenheit and line a baking sheet with parchment paper. Or, preheat your air fryer to 350° Fahrenheit.
Mix together the gluten-free all purpose flour and baking powder in a large bowl. Then, add in the plain Greek yogurt and mix until a dough comes together (you may need to use your hands to help bring the dough together). If the dough seems dry and won’t come together in a ball, try adding an additional 1-3 tablespoons of Greek yogurt to the dough.
Scoop about 2 tablespoons of dough and roll it between the palms of your hands to form a ball. Place each ball on your prepared baking sheet or inside the basket of your preheated air fryer. Lightly brush the top of each bagel bite with the egg wash, then sprinkle with everything bagel seasoning.
Bake the gluten-free bagel bites for 15-20minutes, or until lightly golden. Or, if you’re using an air fryer, air fry the bagel bites at 350° Fahrenheit for 12-15 minutes. Remove the bites from the oven or air fryer and let cool slightly before serving warm with butter and cream cheese.