Preheat oven to 350 degrees Fahrenheit.

In an eight- by eight-inch baking dish, arrange one third of the broken matzah pieces.

In a medium bowl, beat eggs. Add sour cream, cottage cheese, butter, salt, and one cup shredded cheese. Pour one-third of the cheese mixture over the matzo. Repeat with two additional layers of matzo and cheese.

Top with remaining one cup shredded cheese. Bake for 40 minutes. The cheese on top should be brown and bubbling.