Dating has historically been difficult for sandwiches, whose hard, crunchy shell often hides their soft, complex interior from potential suitors. Get to know these forlorn foodstacks with today's Groupon: for $10, you get $20 worth of burgers and more at Over the Bar Bicycle Café, one block from the South Side Works trailhead on the Great Allegheny Passage.

Winner of Pittsburgh City Paper's reader poll for 2009 Best New Bar/Club, Over the Bar Bicycle Café wheels out a varied menu to revive fatigued bikers after a pedal-tastic day. Quell rebellious stomachs with an appetizer such as the Spoke Junkie, made from baked zucchini spooled up inside three cheeses ($6.99), or the Heritage Trail hummus ($6.99), which is supplied by Salim's in Oakland. Like hiring children as circuit-court judges, the Dirt Rag Delight fuses joyful childhood experimentation with mature tastes into a flavorful burger smothered in peanut butter ($7.99). Taste buds looking for a spicy challenge find a worthy duel in the Rail Trail wrap ($7.99), as tangy buffalo chicken is enveloped in pita bread and sprinkled with blue cheese or ranch dressing.

OTB Bicycle Café delights pedal-heads with its canopy-mounted bicycles and bike-based paintings on the ceiling, reminiscent of Michelangelo's ornate frescos on the origin of scooters. Using many recycled cycles from Free Ride, the restaurant's décor ranges from banana-seaters to toilet-paper dispensers made of old bike parts, impressing gear gurus, casual bikers, and sentient bicycles alike. Over the Bar also explores technology trails with its free iPhone app.