Preheat oven to 375°F (190°C) and line a baking sheet with parchment paper.
In a mixing bowl, combine Greek yogurt and self-rising flour. Stir for 1-2 minutes until mixture comes together in a rough, sticky mass with no dry flour visible.
Crack in the egg and mix until well incorporated into the dough, another 1-2 minutes.
Fold in everything bagel seasoning and shredded cheese if using. Mix just until evenly distributed. Do not overmix.
Divide dough into 8 equal portions (about 2-3 tablespoons each). Wet hands slightly and roll each portion into a ball.
Place dough balls on prepared baking sheet, spacing 2 inches apart. Flatten each with your palm to about 1/2 inch thick.
Brush tops generously with olive oil and sprinkle with additional everything bagel seasoning.
Bake for 15-18 minutes until tops are golden brown, edges look set and slightly crispy, and centers spring back lightly when touched.
Let cool on baking sheet for 5 minutes before transferring to a wire rack.
Notes
Full-fat Greek yogurt works best for chewiest texture. Low-fat versions may result in drier bagel bites.
If using all-purpose flour, make self-rising flour by mixing 1 cup all-purpose flour with 1½ teaspoons baking powder and ¼ teaspoon salt.
The dough will be sticky. Keep hands slightly wet when handling to prevent sticking.
Don’t overmix the dough to maintain chewy texture.
For extra protein, add 1-2 tablespoons unflavored protein powder (may need extra yogurt for consistency).
Store in airtight container in refrigerator for up to 3 days or freeze for up to 1 month.