Preheat your oven to 375°F (190°C).

In a large mixing bowl, combine 2 cups of all-purpose flour, 1 tablespoon of baking powder, 1 teaspoon of salt, and a dash of freshly ground black pepper. Add ¾ cup of warm water and 2 tablespoons of olive oil, stirring until a shaggy dough forms.

Transfer the dough onto a floured surface and knead it for about 3-4 minutes until smooth and elastic.

Flatten the dough into a rectangle about ¼ inch thick using a rolling pin.

In a separate bowl, combine 1 cup of shredded mozzarella cheese, ½ cup of grated Parmesan cheese, 4 ounces of cream cheese, and 1 cup of chopped mixed vegetables. Add 1 tablespoon of chopped fresh parsley and 1 teaspoon of garlic powder to this mixture, blending thoroughly.

Spread the cheese and vegetable filling evenly across the surface of the rolled-out dough, leaving a small border around the edges.

Starting from one edge, tightly roll the dough and pinch the seams to seal. Cut the rolled dough into 8 equal pieces.

Place the rolls cut-side up on a greased baking sheet and brush the tops with melted butter.

Bake for 20-25 minutes until golden brown and the cheese is melted.

Once baked, let them cool for a few minutes before serving.