In a mixing bowl, combine warm water, yeast, and sugar. Let it sit for about 5 minutes until it becomes frothy.

Add flour and salt to the yeast mixture. Stir until it forms a rough dough.

Transfer the dough to a floured surface and knead for about 5 minutes until smooth.

Place the kneaded dough in a greased bowl, cover with a towel, and let it rise in a warm place for about 30 minutes.

Preheat your oven to 400°F (200°C).

Punch down the risen dough and divide it into 12 equal pieces.

Flatten each piece and place a small amount of cheese and toppings in the center.

Fold the dough over to seal the filling inside.

Place the sealed balls seam-side down on a parchment-lined baking sheet.

Bake for 15 minutes or until golden brown.