Like the earth, a sandwich is made of layers and gathers its strength from its meaty core, which pushes condiments toward the crust to erupt and bury fingers in deliciousness. Let rivers of mayo magma run with today's Groupon: for $5, you get $10 worth of sandwiches, hot dogs, burgers, and more at Pop's Italian Beef & Sausage. Choose from the following locations: Chicago (on Kedzie Avenue); Homewood; Lockport; Lyons; Mokena; Orland Park; Palos Heights; Romeoville; Tinley Park; Dyer, Indiana; and Crown Point, Indiana.

For more than 30 years, Pop's Italian Beef & Sausage has served up a Chicago-centric menu of beef sandwiches, burgers, and hot dogs. Silence empty-belly rumblings with one of Pop's delectable beef sandwiches ($4.19–$6.35), such as the italian beef, heaped with mounds of succulent, thin-sliced beef soaked in special spices and natural gravy. Windy-city visitors can delight in the classic Chicago hot dog and the savory polish sausage (each around $2.29–$2.99, depending on location), each nestled underneath mustard, relish, onions, tomatoes, pickles, and the looming shadow of oscillating skyscrapers. Other handheld fare includes the meatball and corned-beef sandwiches, which can be upgraded with a variety of extras, including red sauce, sweet peppers, hot mix (all free on sandwiches, extra as a side), feta cheese, and bacon. A fleet of made-from-scratch soups and salads is also available, and includes such options as the hearty cream-of-chicken rice soup and the large garden salad ($2.09–$3.99).