In a skillet over medium heat, brown the ground beef. Add salt, pepper, chili powder, garlic powder, onion powder, diced tomatoes, and tomato sauce. Cook for 10 minutes.
Preheat oven to 350 degrees. Meanwhile, mix egg and cottage cheese in a bowl.
In a 9x13 dish, add half the meat mixture, followed by half the tortillas (go 3 across and split the 4th in half to layer over any gaps at the top - see photo in post if this doesn't make sense!), half the cottage cheese/egg mixture, and half the cheddar cheese. Repeat layers one more time.
Bake at 350 degrees for 30 minutes and enjoy!