Remember how Wednesday used to be Prince spaghetti night? It seems that Angelo Antidormi, owner of Trattoria Ottimo, has based his bustling eatery on the same notion: that hungry folks find comfort in regularity (not to mention hearty portions dished out quickly with a cordial wink). Ottimo offers a particular platter for each day of the work week. So join the throngs of Financial District professionals who are already in the know, and reserve Tuesday for tortellini with broccoli and cheddar sauce ($5). Or maybe you’re the type who operates on a reward system: after slogging through a full week of the daily grind, you can reliably indulge in one of Ottimo’s Friday specials, like a piled-high plateful of paella ($5) with an ocean’s variety of shellfish in a subtle saffron sauce.

But for those who aren’t such creatures of habit, there’s a hearty line-up of classic Italian sandwiches and salads and a few outside-Italia offerings tossed in for cosmopolitan palates, like a Cajun-chicken sandwich ($4.75) with breaded meat grilled to gentle crispiness before it’s rubbed down with spices. With none of the selections topping $5, you don’t need a career in finance to recognize that they’re steals.

Everyone, from on-the-go executives to hard-working hardhats, takes pleasure in the emphasis on eating underscored by the Abruzzese-accented décor. (Little coincidence that Antidormi hails from that region.) Diners always seem willing to accept the cramped quarters and rickety chairs as they devour their dishes, and we chalk that up to the cozy kitchen atmosphere, replete with pans clanging behind the cafeteria-esque food line, bronzed cookware hanging from the walls, and an array of potted plants lining the wall. Brings you right back to Prince spaghetti night.

Trattoria Ottimo, located at 184 High Street, in Boston, is open Monday through Friday, from 11 a.m. to 4 p.m. Call (617) 357-0800.