Well, keeping in mind I'm vegan, lol, 2 of my favorite restaurants are Cafe Roussillon at the corner of Rue Cler and Rue de Grenelle and I also like Restaurant di Felice which is just another block east on Grenelle.
I also like Gusto Italia - there are 2 at the end of Rue Augereau but I like the one that is across the intersection on Grenelle that is more of a white tablecloth place. I did NOT eat there this last trip but walked by and it is open.
IF you like Indian food, I've had a good meal at Goa which is just down the block from your hotel.
Your tour may eat a meal at La Terrasse which is at the corner of Rue de la Motte-Picquet and Avenue Bosquet. I usually eat there once during my trips but ask your guide about the welcome/farewell meals as you might not want to duplicate it.
I've heard good things about Auberge Bressane on Avenue de la Motte-Picquet but have not eaten there. I've looked at the menu but it's way more meat-centric so not my thing.
I've also eaten at a couple of restaurants on Rue Malar, specifically Dong Phat and the Indian restaurant next door (well maybe 2 doors down).
On Rue Cler I like Le Petit Cler for wine and people watching, lol. Food looks good and I've had salad there that was very good. I noticed on the Facebook page for Vero, a Rick Steves guide who does Best of Paris that she was having a glass of wine here recently! (France with Vero is the FB page, formerly French Girl in Seattle https://www.facebook.com/frenchgirlinseattle)
https://www.tripadvisor.com/Restaurant_Review-g187147-d1916013-Reviews-or600-Le_Petit_Cler-Paris_Ile_de_France.html
It's owned by the same folks that own La Fontaine de Mars which is pretty near your hotel but a lot pricier!
As you can see there are a huge number of places to eat! You can also just walk and look at menus!