Bina is a good family friend who is from a part of Italy just south of us. She’s also a great cook.
Slice a pagnotta loaf in half lengthwise (it’s the big round one with a hole like a donut). Lightly toast in the oven on broil.
Brush olive oil on each half, and then season with salt, pepper, and oregano.
Thinly slice a tomato and place on bread. Grab the salt, pepper, and oregano one more time and season the tomatoes. Drizzle a little more olive oil over the tomatoes and sprinkle some shredded mozzarella on top as well. Reheat in oven, slice, and serve.