Preheat the oven to 350°F (175°C) and spray a 9x13-inch baking dish with cooking spray.
In a large skillet over medium-high heat, cook the ground beef, breaking it up, until no longer pink.
Add the seasoned salt, taco seasoning, undrained diced tomatoes, tomato sauce, and chopped green chilis to the skillet; stir to combine.
Reduce heat to medium-low and simmer the meat mixture, uncovered, for 15–20 minutes until slightly thickened.
While the meat simmers, whisk the cottage cheese and lightly beaten eggs together in a bowl until well combined.
Spread half of the meat sauce in the bottom of the prepared baking dish.
Layer half of the torn corn tortillas over the meat, then spread the cottage cheese mixture over the tortillas, and sprinkle with half of the shredded Monterey Jack.
Repeat the layers with the remaining meat, tortillas, cottage cheese mixture, and top with the remaining shredded cheese.
Bake the assembled casserole uncovered for 30 minutes, until bubbly and cheese is melted.
Let the lasagna stand at room temperature for 10 minutes before serving and top with optional crushed tortillas, salsa, and cubed avocados if desired.