For each sandwich,
keep base half of a muffin on the worktop, top it with a tomato slice and sprinkle ¼ cup shredded mozzarella over it. Keep it in on a baking tray with the other half of the muffin by its side.
Slide the tray under
the broiler and broil until the cheese melts and browns.
Bring the tray out of
the oven and place a fried egg over the cheese. Top with basil leaves and cover with the top half of the muffin. Make more sandwiches in the same way.