On our way to Yama for sushi last night my girlfriend and I walked past Casa Mono, and we decided to try it instead. Last night happened to be the opening night and we had a wonderful experience. We sat at the back bar (6 or 7 seats?) and there is also a bar (again around 6 or 7 seats) on the side of the restaurant which faces the open kitchen. The interior reminded me of a darker and smaller Otto - tons of shelves with bottles of wine, etc. But on to the important part... The menu consists of small plates arranged somewhat by size and course, but there are no divisions on the menu i.e. no defined appetizers or mains. Prices range from $3 - $15 per dish. We ordered 2 different spanish reds by the glass, and enjoyed the mixed olives that were far better than the usual complimentary olives in NYC. Our first round of dishes was roasted brussel sprouts a la plancha, bacalao croquetas with orange alioli, cockles with huevos revueltos, and a duck egg with mojama. The brussel sprouts were good, but somewhat plain when compared to the other dishes. Bacalao croquetas were wonderfully light and flavorful with a very crisp exterior and a soft center, but the amount of orange alioli was a little overpowering. After my first bite I used it sparingly. Cockles were also very good, but the best of this round of dishes was definitely the duck egg. It's a fried duck egg over roasted figerling potatoes and serrano ham, I believe. A wonderful dish that I will be back for soon. For our second round of dishes we got pumpkin and goat cheese croquetas, sweetbreads with fennel al Mono, tripe with chickpeas and morcilla, and scallops with cava and chorizo (different from posted menu). We were comped the croquetas (only got 3 instead of 5) because they had run out of batter, which was a shame because they were excellent. Smaller than the bacalao croquetas, the goat cheese flavors were much more pronounced than the pumpkin. Sweetbreads with fennel was our favorite dish of this round, just a great combination. Tripe with chickpeas also worked well and would be great on a very cold winter evening. Scallops were beautifully presented in their shells, and were very fresh, but the dish wasn't as exciting in taste as it was in presentation. We shared a "Mono Sundae" (prune and armagnac ice cream with arrope-- grape must with pumpkin???) for dessert, which we both agreed was one of the best and most interesting desserts we've had this year. Also had a great glass of sherry with it (with a tad poured over the sundae). Bill for the night, including 7 dishes, 1 dessert, 3 glasses of wine and a glass of sherry, was around $135. Overall, we had a really wonderful time and will return again with friends to try even more of the dishes - looking forward to the lamb and the skirt steak which both looked great. One warning: they do not have enough ventilation for the grill station so whenever someone orders the lamb the room fills with smoke. If you're sensitive to this type of thing I suggest you avoid the restaurant until they clear up that problem.