
Start by pouring the hot water into a large skillet with the beef liver and the butter.
Then turn on the heat to medium and let everything cook for 20 minutes.
After this time has passed, remove all the liver from the skillet, chop into smaller pieces and set aside.
In a large skillet over medium to low heat, add a drizzle of olive oil.
Add the onion chopped into small cubes, red bell pepper also chopped into small cubes, the grated carrot, the grated zucchini and sauté everything for 5 minutes.
In a large bowl, add the eggs, the salt, the black pepper, chopped green onions to taste and mix everything very well.
Add the liver we prepared, the sautéed vegetables, the wheat flour and mix everything very well until combined.
In a large skillet over medium to low heat, add a drizzle of olive oil and spread it.
Add the mixture we prepared and spread it.
Cover the skillet and let everything fry for 10 minutes.
After this time has passed, flip it with the help of a plate.
Add the shredded mozzarella cheese, cover the skillet again and let it fry until the cheese is completely melted.
Serve.