Start by cutting the bread rolls into thick slices and remove the inside.
Next, cut the ham into dices and grate the mozzarella cheese.
Into a bowl, add the eggs, the salt, the garlic powder, the oregano and the black pepper, mix well.
Add all the diced ham and the grated mozzarella, mix very well again until combined.
Next, into a skillet, add the unsalted margarine and stir until fully melted.
Next, put the bread slices into the skillet and stuff them with the mixture we’ve prepared.
Cover the skillet and let it all cook for 5 minutes.
After this indicated time, flip the bread slices and let it all cook for another 5 minutes.
Serve.