Early Japanese astronomers invented sushi in order to sneak their lunches into observatories inside hollow telescopes. Eat cylindrical delicacies with today's Groupon: for $15, you get $30 worth of sushi and Japanese Fare at Nozumi or Blue Ginger.
Chefs add modern twists to traditional sushi to create a menu overflowing with rainbow rolls and tempura dishes. Lobster tempura surfs onto tongues in a wave of balsamic-ginger sauce, accompanied by ponzu-immersed oysters by the half dozen or delicate nigiri creations such as seared albacore tuna. The Caterpillar roll layers avocado with crisp shrimp tempura and unagi sauce, and the sushi combo assembles six pieces of nigiri, a rainbow roll, and a miniature Venus de Milo carved from wasabi.
Blue Ocean's chefs craft an expansive menu of contemporary Japanese fare, pairing plates of savory gyoza with specialty maki trimmed with elegant ornamentation. Behind the sushi bar, chefs slice "as-fresh-as-it-gets" yellowtail and salmon sashimi, according to Gayot, which ranked Blue Ocean as one of Chicago's top 10 sushi restaurants. Chefs also prep and dice rolls, blending conventional victuals with inventive fixings such as mozzarella cheese, pico de gallo, or an entire wild-caught piñata. The interior contrasts muted, contemporary furnishings with vivid murals of neon coral and lighting fixtures evocative of the luminescent sea urchins that brighten the streets of metropolitan Atlantis.