Grease 9 X 13 baking dish, then pour dried pasta into the dish. Then pour in the 4 cups of cheese, mix until full incorporated with your fingers. Then pour in the riced cauliflower as well & mix in with your fingers.
In a small bowl add in the salt, paprika, garlic powder, basil, pepper & cayenne pepper. Whisk together. Now sprinkle seasoning over the top of the pasta mixture. Massage into the the mixture until mixed well. Then break apart the cream cheese on top.
In a large bowl add in the milk, mustard & Worcester sauce. Whisk until full combined. Then pour over the pasta mixture. Press down on the pasta so it is covered by the liquid. Then place foil over the baking dish. Bake covered for 50 minutes.
After baking for 50 minutes, take dish out, give it a stir, then place back in oven for 20 minutes uncovered. At 10 minutes-- stir again, then bake for the following 10. Then take out sprinkle cheese on top, broil on HIGH for 5 minutes or until bubbling & golden brown.
Take out, let sit for 5 minutes, sprinkle fresh parsley on top or dried, then enjoy!!
HGHF TIP: We love adding chicken sausages to the top of ours