Not a full menu, I realize, but you could make sourdough bread:

Classic San Francisco Sourdough Bread
http://www.geniuskitchen.com/recipe/c...

Sourdough Starter
https://www.thekitchn.com/how-to-make...

The sourdough bread could be used for sandwiches, croutons, garlic bread, french toast, panzanella bread salad, bread pudding, an accompaniment to soup or salad, etc.

In addition, though drinks might be hard to transport if you are traveling by airplane, you might think about a nice wine and/or beer. Perhaps a wine from a vineyard near San Francisco and a six pack or two of Anchor Steam, if your family partakes in that sort of thing.

Upscale Vegan Friendly:

Cedar
http://www.cedardc.com/
http://www.cedardc.com/vegan-dinner-m...
(as TheMatt suggested)

Coppi’s
http://www.coppisorganic.com/
http://www.coppisorganic.com/menucoppis/
(once you click on menu scroll on down and there is a whole vegan section)

Equinox
http://www.equinoxrestaurant.com/
http://www.equinoxrestaurant.com/dinner/ (a few options)
http://www.equinoxrestaurant.com/brunch/ (all vegan brunch on Sundays)
(as TheMatt suggested)

Elizabeth’s Gone Raw
http://elizabethsgoneraw.com/

A few additional restaurants that are vegan friendly but not upscale:

Hip City Veg
NuVegan Cafe
Great Sage
Evolve
Chaia
Busboys and Poets
Shouk
Fare Well
Sticky Fingers Bakery
Fruitive
Beefsteak
Bareburger
Sunflower (Falls Church and Vienna, VA)

Flanders
Fish Market, Restaurant and Bar
East Lyme, CT
https://flandersfish.com/

Lillian’s Cafe
Niantic, CT
http://lillianscafeniantic.com/

Cafe Sol
Niantic, CT
https://www.cafesolniantic.com/

Castello
Niantic, CT
http://www.castelloofniantic.com/
http://www.castelloofniantic.com/menu/

The Black Sheep
Niantic, CT
http://theblacksheepniantic.com/

Deke’s Bagels
Niantic, CT
https://www.dekesbagels.com/

Black Point Pizza
Niantic, CT
https://www.blackpointpizza.com/

Muddy Waters Cafe
New London, CT
https://www.facebook.com/MuddyWatersN...

Right Path Organic Cafe
New London, CT
http://rightpathorganicca.wixsite.com...
https://www.facebook.com/rightpathorg...

Oyster Club
Mystic, CT
http://www.oysterclubct.com/

Shakahari
Old Saybrook, CT
https://www.facebook.com/ShakahariOS/
http://www.theday.com/article/2017011...

Brick and Basil Pizza
Norwich, CT
https://www.facebook.com/brickandbasil/
https://www.brickandbasil.com/

Crown Pizza
Waterford, CT
https://www.facebook.com/crownpizzawa...

G-Zen
Branford, CT
http://www.g-zen.com/

Milagro Cafe
Stonington, CT
http://milagrocafect.com

I second the suggestion of soup and would also put in a plug for grain and bean bowls. Grain and bean bowls can be especially quick and easy if you use canned beans. You can mix it up a thousand different ways. Quinoa with black beans, cooked or raw spinach and feta cheese. Brown rice with chick peas and broccoli or spinach, olives, sun dried tomatoes, garlic and little chunks of mozzarella cheese. Orzo with white beans, spinach, olives and feta cheese. Brown rice with white beans, chunks of roasted sweet potato or butternut squash, sauteed or raw kale, pumpkin seeds, dried cranberries, garlic and feta cheese. Brown rice with pinto or black beans, shredded lettuce, salsa, a dollop of plain greek yogurt and shredded cheddar cheese. Bulgur with chick peas, cucumber, cherry tomatoes, parsley, mint, feta cheese and tahini sauce. Farro with white beans, arugula, cherry tomatoes, olives and feta cheese. Barley with lentils, spinach, sauteed mushrooms and roasted carrots. Brown rice with black beans, corn, cherry tomatoes, roasted red peppers, arugula, garlic, cumin, lime juice and feta cheese. Orzo with white beans, pesto, broccoli, walnuts and feta cheese. Brown rice, sauteed green beans, chunks of baked tofu, sesame ginger peanut sauce and sesame seeds. Brown rice with chick peas, kale, golden raisins, pecans, garlic and feta cheese. Etc., etc. Amounts of ingredients depend on your liking and how many people you need to serve. Also, any of the dishes can be made more flavorful by cooking the grain in vegetable stock or drizzling over a bit of olive oil or adding your favorite sauce or throwing in a dash of herbs and spices and of course everything needs a tad of salt and pepper. Additionally, you can add meat if desired, you can leave out the cheese if you want to lower the calories a bit, and you can add or subtract anything you want. Really there are no rules and the possibilities are endless. You are only limited by your imagination.

Rita's on the River
Rio Plaza
245 E. Commerce St.
San Antonio, TX 78205
http://ritasontheriver.com/
(voted most pet friendly restaurant in San Antonio and 3rd most pet friendly in the country by USA Today)

Schilo's
424 E Commerce St
San Antonio, TX 78205
https://www.schilos.com/

Boudro's
421 E. Commerce
San Antonio, TX 78205
http://www.boudros.com/

The Original Blonco Cafe
419 N. St. Mary's
San Antonio, TX 78205
http://blancocafe.net

The Republic of Texas
526 Riverwalk
San Antonio, TX 78205
http://therepublicoftexasrestaurant.com/

County Line BBQ
111 W. Crockeet St., Suite 104
San Antonio, TX 78205
http://www.countyline.com/

Paesanos Riverwalk
111 W. Crockett Street, Suite 101
San Antonio, Texas 78205
https://www.paesanosriverwalk.com

Pomperdale New York Deli
3055 E Commercial Blvd.
Ft. Lauderdale, FL 33308
http://pomperdalenydeli.com/

Smoke BBQ
3351 NE 32nd St.
Ft. Lauderdale, FL 33308
http://www.eatbbqnow.com/

The Pastrami Joint
1940 N. 30th Rd.
Hollywood, FL 33021
https://thepastramijoint8.wixsite.com...

JP's Bagel Place
2649 Hollywood Blvd.
Hollywood, FL 33020
http://www.jpsbagelplace.com/

Josh's Delicatessen (as already mentioned)
9517 Harding Ave,
Surfside, FL 33154
http://www.joshsdeli.com/

Goldstein's Prime
7419 Collins Ave.
Miami Beach, FL 33141
http://www.goldsteinsprime.com/