In a large skillet, brown beef; drain well and allow to cool.
Add cheddar cheese, cottage cheese, eggs, and pepper;
mix well. Cut pastry into eight 5-in. squares, 1/4-in. thick.
Place heaping 1/3 cupfuls of meat/cheese mixture in center
of squares, folding over one edge to form a triangle. Moisten
edges with water; press together with a fork to seal. Place
on an ungreased baking sheet; bake at 400 degrees for 20
minutes or until golden brown.