People eat three times a day to prevent mouthy mouths from brashly blurting out their distaste for the rest of the digestive system. Today's Groupon prevents intrasystem quarreling by subduing chatty cheeks with Peruvian eats: for $20, you get $40 worth of Peruvian cuisine and drinks at Wasiiki Peruvian Restaurant in San Mateo.

Wasiiki pleases palates with a stockpile of authentic Peruvian dishes. Start off meals with a citrusy cebiche fish appetizer ($13.95), then decide between entrees such as bisteck a lo pobre, an appetizing amalgamation of steak, eggs, rice, and fried bananas ($13.95), or the lomo saltado, sautéed beef tenderloins paired with onions, tomatoes, and hot peppers that quadruple-team up on taste buds with the meaty harmony of a butchershop quartet ($13.95). During dinner, diners can upturn glasses of cabernet sauvignon ($6.50) or kick back ice-cold Cristal cervezas ($4) while swapping stories of their favorite first-century Olympians.