The holidays are filled with traditions, but what those are vary wildly by person or family. Christmas can be all about a big celebratory feast or marked by a laidback Chinese dinner. It can involve delighting kids with visits with Santa and crafts, or be a time to catch up with friends while sharing some seasonal beers. No matter how or when you celebrate, this guide to 21 local events will help make your planning easier.

Crab Cellar. An all-you-can-eat seafood feast at the Lincoln Park restaurant features a sparkling wine toast, king crab, jalapeno hush puppies, mac and cheese, and peppermint ice cream with hot fudge. $149.99; add lobster for $22.95. 4-8 p.m. Dec. 24, 1962 N. Halsted St., 773-248-1737, crabcellar.com

Osteria Via Stato. A four-course dinner inspired by the Feast of the Seven Fishes features calamari with hot cherry peppers, lobster and shrimp risotto, and eggnog gelato. The River North restaurant’s regular menu will also be served. $59.95. 4-9:30 p.m. Dec. 24, 620 N. State St., 312-642-8450, osteriaviastato.com

RPM Italian. A modernized spin on the Feast of the Seven Fishes features king crab salad, little neck clams and roasted Maine lobster. $85; $65 for wine pairings. Noon-10 p.m. Dec. 24, 52 W. Illinois St., 312-222-1888, rpmrestaurants.com