There’s no such thing as a free lunch. But occasionally, you can get a side dish.

Oct. 25 is World Pasta Day and to mark the special occasion  Buca di Beppo, the family-style Italian restaurant, is giving free spaghetti a twirl.

Thursday, all patrons who present a World Pasta Day coupon and purchase any Buca small or large pasta, baked pasta or entree will receive a free side serving of spaghets with their choice of meat sauce or marinara sauce.

But the freebie doesn’t stop there. Guests will also get a one-pound package of Rummo-brand Italian Pasta, uncooked, of course, to take home and cook at their leisure. (The fine print: the offer isn’t good with any other discount. Enough already.)

In addition to the one-day event, Buca di Beppo is serving up a family-style feast for four people for $40 through Nov. 11. The dine-in only deal includes salad, garlic bread and choice of spaghetti marinara, fettuccine Alfredo, baked ziti or ravioli al pomodoro all in a Buca large size, which is humongous.

World Pasta Day was rolled out in 1995 as an international celebration of pasta. In Roma. Where else?