Brown the ground beef in a pan.
Add the pasta sauce and bring to a simmer. Take off the heat and set aside.
Blend the mozzarella, ricotta, egg, and parsley in a bowl.
Spread half a cup of the meat sauce on the bottom of a lightly-oiled baking dish.
Arrange lasagna pasta on top of the meat sauce.
Spread about 1/3 cup of the cheese mixture on top of the lasagna.
Continue layering until ingredients are used up.
Cover the dish with aluminum foil and bake for an hour at 375F.
Meanwhile, blend the butter, garlic, parsley, and parmesan in a bowl.
Spread mixture on to one side of each slice of bread.
Arrange bread slices on a baking sheet and bake for 10 minutes at 325F.