Flatten the meat slightly, rub it with the crushed garlic, salt, pepper and the lemon juice, and let stand for 30 minutes.
In a pan, melt the butter with the olive oil, sauté the onion, then add the bay leaf, tomato paste and tomatoes.
Pour in the beef stock and season with salt and pepper.
Simmer over low heat until the sauce thickens.
Add the green peas and pepper strips and cook for another 5 minutes.
Stir in the chopped parsley and half a tablespoon of butter, and remove from the heat.
Dredge the meat in flour and fry the pieces one by one in warm olive oil.
Arrange the toasted bread slices on plates, place a piece of meat on each, pour the hot sauce over them, sprinkle generously with Parmesan, and serve immediately.