Preheat oven to 350°F. Spray a 9×13-inch baking dish with nonstick spray.

Boil water in a large saucepan and cook egg noodles al dente. Drain and rinse with cold water to stop cooking.

In a skillet, cook ground beef, onion, and garlic over medium-high heat until beef is no longer pink. Drain excess oil.

Reduce heat to medium and stir in marinara sauce, ½ tsp salt, and ½ tsp pepper. Simmer, then remove from heat.

In a mixing bowl, combine cottage cheese, sour cream, green onions, and the remaining ½ tsp salt and ½ tsp pepper.

Stir in the cooked and cooled egg noodles until evenly coated.

Spread half the noodle mixture into the prepared dish.

Spoon half the beef mixture on top.

Sprinkle with 2 cups of the shredded cheese.

Repeat with remaining noodle mixture, beef mixture, and top with 1 cup cheese.

Bake uncovered for 30 minutes, until cheese is melted and casserole is bubbling.

Serve hot.