Cheaper alternative to parmesan cheese? The parmesan cheese in pasta recipe is quite expensive.....do we have cheaper alternative??

Are there are cheddar cheese which can replace parmesan cheese?
Grana padano and pecorino romano are two other very savory, hard grating cheeses that work well on pasta. They taste a bit different than Parmigiano-Reggiano, but are quite good in their own right and often less expensive. You can also look at parmesan type cheeses that are not actually Parmigiano-Reggiano. For example, Whole Foods often has one from Argentina that offers a reasonable price/performance tradeoff. All of that said, in many people's opinion, nothing is really quite as delicious as true Parmigiano-Reggiano.