Easy Pizza Casserole Recipe

uncooked Rotini pasta ((3 cups dry) )

Olive Oil

(1.25 lbs) Italian sausage

onion ((finely diced, optional))

Tomato Basil Pasta Sauce ((or your favorite variety))

Italian seasoning

to ½ tsp garlic salt ((to taste))

freshly ground black pepper

shredded mozzarella cheese

freshly grated parmesan cheese ((optional))

pepperoni