Preheat oven to 350 degrees.  Brown sausage in skillet on top of stove, drain, cool completely.  Coat a 9x13x2 pan with cooking spray, Spread Crescent rolls on bottom of pan to form a crust, pinching together the seams.  Spread crumbled sausage over dough.  (If adding green chili's, layer them on top of Sausage).  Then, add Cheddar/Jack cheese in a layer over Sausage.  Layer the Mozerella cheese next.  Beat together eggs, Oregano, Mustard, Salt & Pepper, pour over Cheese layer.  Cook in pre-heated oven for 30-35 minutes.  Let cool slightly before serving.