In a bowl, whisk together tomato paste, extra virgin olive oil, curry powder, onion powder, salt, and pepper. Stir in rice. Taste and season with salt to your liking.
In another bowl, whisk together all the ingredients of the filling.
On a piece of cling wrap, spread the rice and place the filling in the center. Wrap it into a ball and use a piece of kitchen twine to make a crisscrossed pattern. Gently twist a top to tighten. Unwrap and place onto a serving plate.
Cut the stem of the oregano into a 1-inch length and remove leaves except one. Place it on top of the rice ball.