Preheat oven to 350F degrees. Spray a 9"x 13" baking dish with nonstick spray.
Prepare pasta according to directions.
In a medium sauce pan, brown ground beef with onion (if using).
After beef is brown and crumbled, drain excess grease.
Put back in pot and pour in one jar of spaghetti sauce. Keep mixture on low until pasta is done.
When pasta is finished, drain excess water from pasta. You want the pasta as dry as possible.
Put pasta back in large pot (with heat off) and pour in jar of alfredo sauce. Combine until thoroughly coated.
Pour pasta mixture into bottom of 9"x 13" dish.
Cover pasta with spaghetti sauce mixture.
Sprinkle top with mozzarella cheese.
Cover with aluminum foil and bake for 15 minutes.
Remove foil and bake for another 15 minutes until cheese is melted and bubbly. Let rest for about 5 minutes after taking out of oven.
Serve portions onto plates, and pour additional paghetti sauce on top (optional)
Video
Notes
Please refer to my FAQ’s (Frequently Asked Questions) and ingredient list above for other substitutions or for the answers to the most common questions.