Chemilico

Instructions

1. Dice the onion and tomato finely, peeling the tomato if possible.
2. Heat the oil in a skillet over medium heat and cook the onion for 4 minutes until translucent.
3. Add the ground beef and let it brown, crumbling it with a wooden spoon, about 6 minutes.
4. Stir in the tomato, season with salt and pepper, then simmer for 3 minutes until the filling is juicy but not runny.
5. In a small oiled skillet, fry the egg sunny side up over low heat, keeping the yolk runny.
6. Open the rolls, warm them for 2 minutes in a 180 °C oven, then fill them with the meat.
7. Place the fried egg on the meat, add mayonnaise if you like, and close the roll.
8. Serve right away, piping hot.