Deals on multicourse dinners are out there, particularly on Sunday evening, when three-course suppers are all the rage at the Bachelor Farmer ($34), Cafe Levain ($30), Marin Restaurant & Bar ($20) in Minneapolis, and at Muffuletta ($24.95) in St. Paul. But Sanctuary executive chef/co-owner Patrick Atanalian, a master of invention, does them all better by preparing an ever-changing five-course tasting menu ($35) served Monday through Thursday evenings in his near-the-Guthrie hideaway. Another welcome touch: the bar will pour out a well-paired, four-wine flight for just $14. Deal.903 Washington Av. S., Mpls.;