Besides all the drinking this month for St. Patrick’s Day, Boston has a two-week holiday known as “Restaurant Week.” From March 14-19 and 21-26, dozens of restaurants across the city will be offering signature dishes at a ridiculously low rate: two-course lunches for $15.10, three-course lunches for 20.10 and three-course dinners for 33.10. Participating restaurants include some of Boston’s best, like The Cafe at Taj Boston, Capital Grille, Ginger Park and Mooo. For two weeks in March, there’s no better excuse to eat a three-course lunch and dinner every single day.