You can have a day trip from Mysore to Namdroling Monastery Kushalnagar. I have been to this place once and spend almost half a day. You would feel calm experiencing the environment and the people around. We had food there, no big restaurants, but good ones are there.
A bit history about Namdroling Nyingmapa Monastery Tibetan Golden Temple
The monastery was established by the 11th throneholder of the Palyul lineage, His Holiness Drubwang Padma Norbu Rinpoche in 1963, following his 1959 exit from Tibet as the second seat of the Palyul Monastery, one of the six great Nyingmapa Mother monasteries of Tibet prior to annexation. – Source
The Namdroling Nyingmapa Monastery (or Thegchog Namdrol Shedrub Dargye Ling) is the largest teaching center of the Nyingma lineage of Tibetan Buddhism in the world. Located in Bylakuppe, part of the Mysuru district of the state of Karnataka
Namdroling Monastery Photos
The place is well maintained has good parking some small shops to buy some souvenirs and other products for day to day use.
Suggested Reading – Simply Kodavas – Best place to eat pork in Mysore
If you are around Mysore Check this place for good Vegetarian Food – Breakfast and Lunch at Thotada Mane – Srirangapatna
Another suggested place near Mysore is – Ranganathittu Bird Sanctuary – Srirangapatna near Mysore