01 -
Cook the spaghetti in a large pot of salted boiling water according to package instructions until al dente. Drain thoroughly.
02 -
In a medium bowl, beat the egg. Add chopped cooked chicken, sour cream, cream of chicken soup, Parmesan, Monterey Jack cheese, well-drained spinach, half of the French fried onions, garlic, and onion powder. Mix until fully combined.
03 -
Fold the drained spaghetti into the chicken and spinach mixture, ensuring the pasta is evenly coated.
04 -
Lightly grease a 23x33 cm baking dish. Spread the entire mixture evenly in the dish and cover tightly with foil.
05 -
Bake in a preheated oven at 175°C for 30 minutes.
06 -
Remove foil, scatter remaining French fried onions over the top, and return to the oven for 5 minutes until onions are crisp and golden.
07 -
Allow to rest for 5 minutes before serving hot.