Preheat oven to 350°

In a medium mixing bowl, whisk eggs, heavy cream, garlic salt, salt and pepper together until combined.

In a large frying pan, cook onions and ham for about 5 minutes then add to egg mixture.

Stir in both cheeses and mix well.

Cut a v-shape cut lengthwise in the top of both loaves of bread.

Remove the inner bread, leaving about ½ - ¾ inch along the bottom and sides.

Fill with ham and egg mixture

Wrap in foil and bake for 45-55 minutes.

Remove foil and continue baking until done.

Top with additional cheese and enjoy.