I've been to Ubud a few times and eaten at many different places. I have to say that Warung Semesta was very very good - I had dinner there 4 nights out of my 5 night stay. Good variety of choices (vegetarian and non vegetarian) and all the meals I had were delicious and very reasonably priced. We also couldn't stop at main dish ... had to have the coconut crème caramel most nights as it was excellent. The warung is clean, the food was fresh and delicious, the staff were friendly and helpful, and I think it is a "hidden gem".
Warung Semesta is situated in a quieter section of Monkey Forest Rd - on the less busy end of Monkey Forest Rd (close to where the road joins Hanoman Rd)
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