Della Santina’s Trattoria, which has been serving Tuscan soul food in Sonoma for the past 25 years, will celebrate its quarter-century milestone with an Italian pop-up dinner at 6 p.m. Monday, Oct. 12, in the Sonoma Plaza.

Tables and chairs will be provided. Patrons are asked to decorate their own tables in a red, white and green color scheme starting at 5 p.m., with prizes awarded for the most original table decor. A toast will be given at 6 p.m., and dinner will be served at 6:30 p.m.

The family-friendly, family-style dinner includes pasta three ways, salad and bread. Wine by the bottle will be for sale from Enoteca Della Santina, or you can bring your own.

Tickets cost $15 adults, $5 for kids 12 to 17, free for kids under 12. Seating is limited to 250. To reserve: http://bit.ly/1JDQTYZ.

Every Wednesday, from Oct. 14 to Nov. 18, Della Santina’s Trattoria will offer a three-course, family-style dinner for $25 to celebrate its anniversary. The dinner includes choice of pasta, salad and dessert.

The restaurant is located at 133 East Napa St. 935-0576.