For the pizza sticks, put the flour in a bowl and make a well with your fist. Crumble the yeast into the water, add salt and sugar and mix.
Pour the yeast-water mixture into the flour well. Cover the bowl with a damp tea towel, and let rise for about 20 minutes. Knead the dough well for 10 minutes and mix in a drizzle of olive oil.
Cover again and let rise for about 30 minutes. Wrap the dough in plastic wrap and let it rest again in the refrigerator for at least 60 minutes.
In the meantime, prepare the tomato sauce. To do this, chop the onion and garlic clove very finely and sauté in a little olive oil. Stir in the tomato paste and the polpa. Simmer for about 20 minutes and season with salt, pepper and oregano.
Shape the pizza dough into long sticks and place them on a baking tray lined with baking paper. Cover again and let rise for about 30 minutes. After the resting time, form depressions in the sticks and fill them with tomato sauce.
Bake in a preheated oven at 180 degrees for about 25-30 minutes until the pizza sticks have reached the desired browning.