In 10-inch skillet, cook sausage until thoroughly cooked and no longer pink, stirring frequently; drain. Stir in onion, parsley, basil, oregano, garlic, pepper and tomato paste; cook 5 minutes, stirring occasionally, until hot.
Meanwhile, heat oven to 375°F. In small bowl, mix Parmesan and cottage cheeses; blend well. Unroll dough into long rectangles on ungreased cookie sheet. Firmly press edges and perforations to seal.
Spoon half of meat filling in 3-inch wide strip lengthwise down center of dough to within 1 inch of short sides. Spoon cheese mixture over meat filling; spoon remaining meat filling evenly over cheese filling. Sprinkle mozzarella cheese over filling.
Fold short sides of dough 1 inch over filling. Fold long sides of dough tightly over filling, overlapping edges in center 1/4 inch; firmly pinch center seam and ends to seal. Brush with milk; sprinkle with sesame seed.
Bake 23 to 27 minutes or until deep golden brown.