To the same pot, add the chopped onion, garlic, and thyme and cook until the onion is soft and translucent. Add in the chicken stock and stir to remove any browned bits from the bottom of the pan.
1 small yellow onion, 2 cloves fresh garlic, 3-4 sprigs fresh thyme, 1/4 cup chicken stock
Pour in the marinara sauce and alfredo sauce and stir to full combine.
24 ounces marinara sauce, 15 ounces alfredo sauce
Add back in the chicken, reduce heat to low, and simmer for 10 minutes.
Pour the cooked and drained pasta into the sauce and stir to fully coat all the noodles.
Pour the pasta into a baking dish and top with sliced mozzarella.
8 ounces fresh mozzarella cheese
Put under the broiler on low for about 5 minutes until the cheese is melted and starts to brown.
Enjoy!
Notes
Broiler intensities vary so watch carefully to not burn your cheese.
Pasta will keep in the fridge for 3-4 days, covered.