Brown meat, onion, cumin, garlic and oregano in a skillet.
Drain and return to skillet.
Add tomato sauce and simmer for a bit until it thickens.
Combine cottage cheese and egg.
Fun Time! Spray your 9X13" pan with cooking spray, then layer ingredients like this:
1) 1/2 - 1/3 Meat Sauce;
2) Shredded Jack cheese (or about 2/3 of the cheese you chose);
3) Green Chilis;
4) Tortillas (I lay mine out like mini overlapping blankets... just make a single layer);
5) Cottage cheese & egg mixture;
6) Top with the rest of the meat sauce & cheddar (or rest of the) cheese!
Bake at 350 for 30-40 minutes; casserole will be browned and bubbly;
Let stand at least 5 minutes before digging in. This makes a HUGE difference!!