Sonic is an American fast-food joint that first started out as a root beer stand back in the 1950s. Over the years, it’s grown to become the biggest drive-in chain in the US and now has restaurants in 3,558 locations. Known as the master of milkshakes and famed for its footlong hotdogs and mozzarella sticks, it might sound a little challenging to eat vegan at Sonic. But don’t worry, at Vegan Unlocked, we’re the pros at making the seemingly impossible possible. Equipped with our Vegan Unlocked secret menu, full vegan menu, and editor’s picks, you’ll still be able to get a sweet deal and slurp on one of Sonic’s many slushes.
The Vegan Unlocked Research Team combed through all 54 items on the Sonic menu and came away with one unmissable custom creation and two on-menu options.
Sonic scores 2 of 5 stars as a restaurant with few vegan options. So, while you won’t find any oat milk in its milkshakes, you can still enjoy a Sonic slush brain freeze and grab a satisfying bite to eat.
This score is calculated based on the number of vegan offerings on Sonic’s menu “as is” or with an easy substitution, a restaurant vegan customizability score and finally, the number of vegan options vs non-vegan options. Learn more about how Vegan Unlocked Ratings are calculated.
Secret Menu
When a restaurant isn’t explicit about its vegan options, it’s understandable to think that it may not cater to vegan customers at all. However, sometimes, you just need to take a closer inspection of a menu to find the hidden vegan gems. We know that this isn’t always easy, so we got our team of vegan researchers to hack the Sonic vegan menu for you, and they came up with a seriously tasty treat.
Hungry for something simpler? Scroll on to find Sonic’s vegan menu items and our editors’ top picks just below this section.
Veggie Sandwich:
Order a grilled cheese but hold the cheese. Then, throw in some lettuce, avocado, tomato, grilled onions, pickles, and jalapeños, and select a vegan sauce of your choice. If you want to stick to the classics, go for ketchup, but if you’re feeling adventurous, why not add some buffalo sauce?
All the Vegan Options at Sonic
So, what else is on the Sonic vegan menu?
Meals
SuperSONIC® Breakfast Burrito: All your favorite breakfast items stuffed into a warm flour tortilla. What could be better? Order this without sausage, eggs, and cheese, and if available, add in some avocado. You’ll end up with a burrito filled with golden tots, diced onions, ripe tomatoes, and spicy jalapeños for a little zing.
Bacon(less) Breakfast Toaster: Need some fuel to kick-start your morning? Get this Breakfast Toaster without cheese, bacon, or eggs. Add in avocado, tomato, jalapeños, and diced onions, with a splattering of picante sauce on top to turn the flavor up to ten.
Appetizers
Tots – add jalapeños, diced onions, and if available, avocado and hatch chiles
Sides
Fries
Tots
Onion rings
Kids
Tree Top applesauce
Desserts
Ice cream cone
Lemonade slush
Limeade slush
Plain slush base
Sauces, Add Ons, Toppings
Buffalo sauce
Honey BBQ sauce (contains honey)
Hickory BBQ sauce
Ketchup
Mustard
Grape jelly
Marinara
SONIC® sauce
Strawberry jam
Sweet relish
Syrup
Avocado
Dill pickle chips
Hatch green chiles
Jalapeños
Lettuce
Diced onion
Sauerkraut
Sport peppers
Sweet pickle relish
Tomato
Editor’s Picks: What Are the Top Vegan Meals at Sonic?
If you’re looking for something a little bit naughty, Sonic’s best tasty treat is its tots. Delicious plain or loaded with jalapeños, onions, tomatoes, and lashings of your favorite vegan sauce, this flavorsome deep-fried dish will have you drooling.
Parched? Sonic’s Lemonade Slush is the most refreshing drink on the menu and will transport you to the land of sunshine and sand – just take a sip, sit back and relax.
Whether you didn’t get much sleep last night or you had one too many, Sonic’s best rough-night remedy is the SuperSONIC® Breakfast Burrito. This burrito is packed with veggies, with a hint of spice to wake you up and will make sure you start your day on the right foot.
Note: Vegan Unlocked is a tool dedicated to helping people find plant-based options. We are not an allergen resource, and want to encourage our friends with allergies to proceed with caution. We cannot control and don’t always know when cross contamination takes place. See Sonic’s allergen menu here. As far as cross-contamination of vegan foods with animal products, this is completely up to your comfort level as an individual. Read our stance on cross contamination here.
Frequently Asked Sonic Questions
Are Sonic french toast sticks vegan?
Unfortunately, Sonic’s french toast sticks contain milk, so they’re not vegan.
Are Sonic pretzels vegan?
Sonic’s pretzels are made with vegan bread, so they’re completely vegan. However, its soft pretzel twists come with butter and cheese dipping sauce, both of which are not vegan, so make sure to order your pretzels without these additions.
Are Sonic slushes vegan?
You’ll be relieved to know that all of Sonic’s slush bases are vegan; just make sure you order yours with a vegan-friendly syrup.
You can find out more information on Sonic by visiting their website here.
Planning on visiting Sonic soon?
Be sure to tag Vegan Unlocked and share your vegan meal or custom creation to be entered into our monthly giveaway!
Sonic’s Vegan Menu Was Brought to You by…
Madaline Dunn
Madaline is a vegan journalist, writer, and editor specializing in sustainability, current affairs, and social justice and the ways in which they intersect. Her work focuses on innovation and progress, prioritizing rigorous investigation. When she’s not writing, she’s in the kitchen experimenting with new plant-based recipes, reading a good book, or thinking about her next cup of coffee.
Cristina Garrido
Cristina is a vegan cook and recipe developer. She’s worked in several vegan kitchens, as a collaborator for different cooking blogs and now works as a consultant helping restaurants interested in making their menus more vegan-friendly. She’s passionate about cultural foods and culinary innovations. Her non-food related interests include thrifting, sustainability and exploring her new adoptive country, Portugal.
