The tortilla's thinness makes it ideal for folding, sliding under closed doors, and illustrating theories that the earth is flat and made of corn. Voyage to the edge of deliciousness with today's Groupon: for $10, you get $20 worth of Mexican fare at Si Señor Mexican Restaurant in Seven Hills.

At Si Señor Mexican Restaurant, a family of chefs eschews frozen foods and instead constructs traditional Mexican fare from fresh ingredients. Crowning the menu like a bonnet on a goose, house specialties include the cazuelada, a combination of sauteed steak, chicken, and chorizo spiced by red bell pepper, mushroom, and onion ($12.99). For those craving a further array of flavors, the Si Señor special keeps taste buds guessing with a pork tamale, beef taco, chalupa, beef enchilada, and chile rellano ($10.99), or the seafood nachos cools melted cheese, shrimp, and crab beneath coleslaw and pineapple salsa ($11.25). Chefs also spin vegetarian variations of classic dishes, such as fajitas served with zucchini, bell pepper, mushroom, onion, and tomato sautéed over George Foreman-less grills ($7.99). Though not included with today's deal, Si Señor's margaritas encourage diners to relax beneath the glow of flat-screen TVs while admiring bright green and yellow textured walls adorned in sombreros and Mexican tapestries.