Dash each mozzarella ball in the flour, deep in the egg then in breadcrumbs, coating well. Place the cheese balls on a plate with baking sheet and put in the freezer for 10-15 minutes or until chilled and firm.
Heat the vegetable oil in a medium skillet over medium-high heat. Cook the cheese ball at a time, brown for a minute on each side until golden. Repeat with remaining cheese balls and place the fried cheese in the plate with baking sheet, to drain.
In a mixing bowl, combine the lettuce, pepper, tomatoes and onion. Drizzle olive oil and vinegar and lightly season with salt and pepper. Mix gently to coat well.
Divide the salad into 4 plate and top with fried cheese balls. Top with grated parmesan, if you want.
