Grafton Street Pub & Grill in Harvard Square has seats remaining for a tequila-based meal Tuesday.

Tequila lovers have a resource in Davis Square year-round in The Painted Burro Mexican Kitchen & Tequila Bar, but Harvard Square’s Grafton Street Pub & Grill has something special Tuesday as an extension of Sunday’s Cinco de Mayo festivities: a Tequila Tuesday dinner of four seasonal courses paired with tequila cocktails.

There’s even a fifth course, in a way: The sponsoring Diageo liquor company will have a representative on hand to give participants a crash course in the history and use of tequila (with an inevitable emphasis on the company’s Don Julio brand).

Bar manager Morgan Carney mixes the cocktails and chef Eric Gregory has the menu of Mexican-inspired modern American fare. The menu and pairings includes Seared Ahi Tuna paired with the Blood Orange Margarita; Duck Confit Tacos paired with the Jalisco Holly (tequila with fresh basil and strawberry balsamic simple); Lambchetta paired with the Smoked Anejo Margarita; and Blackberry Shortcake (with tequila-infused blackberries and cornmeal shortcake) paired with the La Perla (tequila with sherry, pear liqueur and fresh lemon).

The meal is $45 per person, and the restaurant asks that diners note the special dinner in making reservations through its website’s reservations system. As of late Monday, the restaurant said there was “still a few spots left.”

Grafton Street, which opened in 1996, is at 1230 Massachusetts Ave., Harvard Square.

This post took significant amounts of material from a press release.