In a large skillet cook the ground beef and onion until burger is no longer pink inside. Drain if needed. Stir in the cumin, oregano and chili powder and cook for another 2 minutes. Set aside.
In a medium size, bowl mixes together the milk and soup until smooth. Spray a 9 x 13 casserole dish with cooking spray and pour the soup mixture into the casserole dish.
Roll the crescent roll dough out on a floured surface and separate dough into 4 rectangles and then press the perforations together to combine any seams.
Using a rolling pin roll each piece out to about 4 x 8 inches and then cut them in half to equal 4-inch squares.
Place about a 1/ 4 cup meat mixture in the center of each square. Pull the 4 corners up and then pinch and twist to seal the dough. Arrange the filled squares in the casserole dish on the soup mixture.
Bake uncovered for 20-25 minutes or until golden brown. Sprinkle the shredded cheese over the top and continue baking until cheese is melted.