01 -
Once you pull the casserole from the oven, if you want, sprinkle over the fresh parsley. Serve while it's hot.
02 -
Flip your oven on to 350°F (175°C). Give a 9 × 13-inch casserole dish a bit of nonstick spray or butter. Set it aside for later.
03 -
Scatter the mozzarella cheese right on top of everything for that stretchy finish.
04 -
Add the remaining pasta to the dish, top it with the last of the meat mixture, and shower on the rest of the cheddar.
05 -
Put half your cooked noodles in the bottom of the baking dish, spoon over half the meaty mix, and toss on half the cheddar cheese.
06 -
Sprinkle in garlic powder, salt, and pepper. Stir in tomato sauce, cream of mushroom soup, and sour cream until everything's smooth and hot.
07 -
Kick off by cooking the ground beef and diced onion in a big pan over medium heat. Cook until the onion's soft and the beef isn't pink anymore. Get rid of any extra grease.
08 -
Cover the casserole with foil. Bake for about 20 minutes. Then, peel away that foil and bake another 10 minutes so the cheese bubbles up and melts all the way.