Sushi by M was a great casual and affordable omakase near the Bowery-ish area. The workers here were SO sweet and were great with recommendations. We did the $69 omakase which was made up of 10 pieces of nigiri plus a hand roll of your choice. Some, but not all, are pictured below. My favorite bite was the amberjack which had some kind of chili crunch sauce on the top. 

This is perfect if you are new to omakase and want to start with something simple. Sometimes I think more expensive omakases are too innovative and out there for the novice sushi eater!