Supersize me

The Caveat Emptor
Perry’s (180 N Franklin St, 312-372-7557); $10.25
As if anticipating litigious Loop lunchers, this comically large sandwich comes with a warning; the Latin phrase caveat emptor translates to “Let the buyer beware.” Endearingly gruff guys behind the deli heap roast beef, corned beef, turkey, Swiss, Muenster, lettuce and tomato onto thick slices of rye bread, topping it off with mustard and Russian dressing. One more warning to you chatterboxes: Perry’s employees will publicly shame you for disobeying the no–cell phones policy.
Leftover potential Though just as delicious the next day, the mustard and Russian dressing rendered the bread a soggy mess. We’d recommend requesting condiments on the side.

Giant slice and a soda
Bacci Pizzeria (105 W Madison St, 312-726-2220; visit baccipizza.com for other Chicago locations); $6.00
In a city devoted to its deep-dish, the broad New York–style slice dished out by this no-frills Chicagoland chain can feel like a guilty pleasure. Glistening with grease and dangling off the edges of a red plastic lunch tray, Bacci’s pièce de résistance, spanning the length of an adult’s forearm, begs to be folded and washed down with a bottomless fountain soda.
Leftover potential Not surprisingly, the edge-crust loses its crispiness during overnight refrigeration. But with a preheated oven (chances are your office toaster oven can’t accommodate even half of a prodigious Bacci slice), you can revive the rest.

Ultimate Burrito
La Pasadita (1140 N Ashland Ave, 773-278-2130); $10.00
“Burritos as big as your head”—it’s a taqueria cliché. But this beloved dive’s burrito delivers quantity (it’s about the size and heft of a newborn baby) without skimping on quality veggies and meats (try the toothsome steak).
Leftover potential Requesting our sour cream on the side (for fear it would make the tortilla mushy), we squeezed three solid meals out of this Brobdingnagian burrito. After reheating it twice, our steak was still as tender and flavorful as the first day.

Monster Burger
Exchequer Restaurant & Pub (226 S Wabash Ave, 312-939-5633); $9.95
With or without cheese, calorie count and fat content are frightening notions when attacking the aptly named Monster Burger, a one-pound behemoth. Happily, you’ll find the staff at this tie-loosening haven, which drips old-school Chicago charm, has little nutrition information to offer patrons. The most effective conscience-quelling tactic: Convince yourself the burger’s part of your new low-carb diet and dig in.
Leftover potential Already-melted cheese doesn’t do well during reheating, and the bun’s moistness suffered from the extended microwave session required to warm this dense hunk of meat.