The hamburger has long held the title of America's greatest culinary invention, narrowly beating out the hot dog, apple pie, and miniature busts of George Washington carved entirely out of Spam. Get a taste of an American culinary king with today's Groupon: for $7, you get $14 worth of American fare and drinks at Henry's Burgers in Novato.

Henry's Burgers delights diners with a menu starring thick burgers served atop fresh-baked, organic buns. Commence consumption with 1 of 16 specialty burgers ($5.99 a la carte; $8.99 with fries and a medium drink) such as a guacamole burger topped with jack cheese, or a western burger slathered with barbecue sauce, cheddar, a crispy onion ring, and bacon. Patrons can put their personal stamp on the succulent sandwich by upgrading buns with one of eight sauces ($0.50 each), six types of cheese ($0.50 each), or a signed photo of themselves, or by swapping out the all-beef patty for grilled chicken, turkey burger, veggie burger, or hand-battered fish filet. The addition of a fried twinkie ($2.39) or creamy, old-fashioned ice-cream float ($3.23) sweetly quashes any remaining hunger molecules.

To add a competitive tinge to casual dining, Henry's inferno burger challenge dares the brave to gobble a bun packed with four hamburger patties, pepper jack cheese, and one hot beer sausage, all crowned with an exclamation-inducing combo of jalapeño peppers, hot pepper flakes, habanero chili sauce, and hot mustard ($15.28). Challengers who are able to finish every bite of the meal––including a side of crispy fries, a large soda, and any remaining silverware––in 15 minutes or less receive their meal for free and earn celebrity status on Henry's "Wall of Flame."