There are several Indian sub-cuisines that don't use any form of onion or garlic. These might be helpful too. Some I've found that might be worth checking out.
Any cookbook on Jain cuisine. It's tough to search for on EYB as Jain is also a common surname. Look for books with "Jain" in the title.
Any Hare Krsna cookbook, or go here for hundreds of recipes
Lord Krishna's Cuisine, or any book by Yamuna Devi (this book is a favourite of mine)
Navratri Special Vegetarian
Saatvik Khana
Satvik Khaana - No Onion No Garlic
No onions no garlic
These are the ones I found in a quick search on EYB. Also, you can search online for "satvik" or "no onion no garlic" recipes or cookbooks.