Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.

Blend the cottage cheese in a mini food processor until smooth.

Combine blended cottage cheese with flour, baking powder, salt, olive oil, chopped spinach, and shredded mozzarella in a large mixing bowl.

Transfer the dough onto a lightly floured surface, shape it into a thick log, and cut into 6 equal pieces.

Shape each piece into a flatter circle with a hole in the center to mimic a bagel shape.

Place each flagel on the prepared baking sheet and brush with the beaten egg wash.

Bake in the preheated oven for 22-25 minutes until golden brown.

Cool the flagels on a wire rack for a few minutes before serving.