Eating hamburgers is an American pastime, much like attending car shows, making hand-tracings look like turkeys, and covering a neighbor's car with glittery hand-turkeys. Enjoy national activities with today's Groupon: for $15, you get $30 worth of classic American fare at Tower Grille in Concord.

With a full bar and an open kitchen, the staff at Tower Grille whips together a lunch and dinner menu populated by delectable American pub classics. The cooks, who grind their own certified Angus beef every day, craft dishes such as the small-plate Tower meatballs ($9) and the Tower burger, an 8-ounce patty with standard toppings and aioli sauce ($9). Supplement the Leaning Tower of pizza ($9) with colorful toppings, such as bacon, feta, or pineapple ($0.50 each), and divide up slices to practice sharing and to prepare for upcoming geometry tests. The Danielle, a grilled chicken-breast sandwich served with asparagus, mozzarella, and tomato drizzled with balsamic, delights taste buds ($12) and the Tower Cut boasts a 16-ounce boneless new york steak smothered in shallot-herb butter to sate cavernous appetites ($28).

Tower Grille charms guests with sporting exploits displayed across nine HD big-screen TVs. An outdoor patio that seats around 30 people offers a refreshing respite and a great venue to complete arguments with the moon.