Step 1

Preheat the oven to 375 degrees F (190 degrees C).

Step 2

Heat a large skillet over medium-high heat. Cook and stir ground beef and sausage in the hot skillet until browned and crumbly, 5 to 7 minutes. Drain and discard grease. Add onion, tomato paste, garlic, parsley, basil, oregano, salt, and pepper. Let simmer, uncovered, for 5 minutes.

Step 3

Combine cottage cheese, Parmesan cheese, and egg in a bowl for filling.

Step 4

Unroll 1 can of crescent rolls on an ungreased 15x13-inch cookie sheet and press the edges together to seal. Spread 1/2 of the meat mixture on top, to within 1 inch of the edge of the dough. Top with cheese filling. Spoon remaining meat mixture carefully on top. Place mozzarella cheese slices on top of the meat.

Step 5

Unroll remaining crescent can and place dough on top, being careful to overlap the edges by about 1/4 inch. Pinch the edges to seal to prevent leaking. Brush dough with milk; sprinkle on sesame seeds.

Step 6

Bake in the preheated oven until golden, 20 to 25 minutes.