The cows are holding up "Eat more phisch" signs.

Chick-fil-A is serving up a fish sandwich in honor of Lent, which began Wednesday.

The chicken chain's Fish Sandwich is on sale now at select restaurants but will be gone by the time you say "Fish-fil-A." The 'wich is available only until April 20, the day before Easter. The starting price is $3.55.

Chick-fil-A started offering the sandwich in 2016.

Also joining the menu for Lent are the Deluxe Fish Sandwich, with a starting price of $4.15, and boxed two- and three-count fish entrees and meals, served with Waffle Potato Fries, for $3.09 and $4.59, respectively.

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Here's the nutrition information:

• Fish Sandwich: 370 calories, 14 grams of fat, 860 milligrams of sodium

• Deluxe Fish Sandwich: 430 calories, 18 grams of fat, 1,100 milligrams of sodium

• Two-count meal: 190 calories, 9 grams of fat, 500 milligrams of sodium

• Three-count meal: 280 calories, 13 grams of fat, 750 milligrams of sodium

Chick-fil-A calls the Lent menu "fin-tastic news."

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Follow USA TODAY reporter Zlati Meyer on Twitter: @ZlatiMeyer

This article originally appeared on USA TODAY: Chick-fil-A serves up fish sandwiches for Lent, now through April 20