I made a point of visiting this restaurant while attending a Conference in Indianapolis. It was a serendipitous find. The food was very good and the staff friendly. The staff were not aware of a "forks over knives" type of eating, but willingly modified a vegan dish to reduce the oil they typically used. I had lunch their and would have considered returning for another meal had my schedule allowed. Personally, I find this place more a lunch than dinner experience, but not having actually been there for dinner, I could be wrong.
Be aware Earth House is located in the back room (fellowship hall?) of a church building so it makes it easy to find on one hand, but may make you a bit hesitant to enter since it is a church. Go around to the side for the restaurant entrance. You won't be sorry.
Cons: A little funky