Sonic Drive-in is a fast food joint known for its unique and trendy menu items, freshly made meals, and car hop service. Their menu ranges from hamburgers to French fries to corn dogs and breakfast toaster sandwiches.
At first glance, it may seem like there are so many carb-y meals that anyone doing a keto diet can’t possibly find anything to suit their dietary needs. But you’d be doing yourself a disservice if you don’t try modifying your meals to make a perfectly healthy keto one!
You can find low-carb options at Sonic so long as you modify them. Luckily, this guide will help you narrow down the top 7 best Keto options at Sonic, and it will advise you on what to avoid ordering at this yummy fast food joint. Ready? Let’s slide into the nitty-gritty details!
Top 9 Best Keto Sonic Options
1. Classic Grilled Chicken Sandwich (no bun)

350 calories | 20g fat | 4g carbs | 28g protein
This sandwich is a great keto option because it consists of all-white meat grilled chicken breast! It comes with tomatoes, lettuce, and light mayo, all served on a Brioche bun!
The Classic Grilled Chicken Sandwich is the best keto-friendly option at Sonic and will have you craving more of this delicious yet healthy meal! Just remember to ask for no bun (since it adds up in carbs) and ask for a bowl instead.
2. Sonic Cheeseburger (no bun)

278 calories | 22g fat | 2g carbs | 19g protein
The Sonic Cheeseburger comes with a pure beef patty, seasoned to perfection. It comes topped with a slice of melted American cheese, chopped onions, shredded lettuce, crinkle-cut pickles, tomatoes, and your choice of condiment – mustard, ketchup, or mayo.
Ask for no bun to get the least amount of carbs and steer away from ketchup. Mayo will add on some calories but mustard is the best bet as it has 0 calories and carbs and will maintain the nutrition info you see above!
3. SuperSonic Bacon Double Cheeseburger (no bun)

638 calories | 49g fat | 3g carbs | 40g protein
The Bacon Double Cheeseburger comes with two quarter-pound, 100% pure beef patties. It comes topped with lettuce, sliced tomatoes, two slices of American cheese, and slices of crispy bacon.
Ask for this burger with no bun, in a bowl, and skip the mayo. You save yourself the calories!
4. Breakfast Burrito (no tortilla, not tots)

290 calories | 23g fat | 3g carbs | 19g protein
This tasty Breakfast Burrito at Sonic contains scrambled eggs, melted cheddar cheese, and the three breakfast types of meat – bacon, ham, and sausage, all wrapped in a warm tortilla.
But the flour tortilla and tots are not keto-friendly. So skip the tortilla and tots and instead put them in a bowl. If you want to cut back on calories, ask for no sausage as well!
5. Crispy Tenders 3 pcs

260 calories | 12g fat | 16g carbs | 21g protein
Sonic’s Crispy Tenders are white meat chicken that is juicy, seasoned, and marinated. You can buy them on their own as a snack, or you will have the option to get them as a “dinner” or meal. Staying low-carb, opt for the tenders by themselves! It is the perfect size for a small snack or side. The best sauces to pair this with are the salsa de sonic or mustard, both of which have 0g of carbs and calories!
These tenders are breaded lightly, which doesn’t make it the ideal keto-friendly choice, but it is quite low-carb compared to other menu options at Sonic. So choose this only if you’re in the mood to shake things up a little!
6. All Beef All American Dog (no bun)

230 calories | 18g fat | 9g carbs | 10g protein
Sonic’s All American dog is a pure beef hot dog, grilled and topped with mustard, relish, ketchup, and onions and served in a bakery-style hotdog bun.
Make sure to ask for no bun as it will add to the carb count. Ketchup will also add to carb and calorie count. So enjoy this All Beef All American hot dog guilt-free by asking for no bun and no ketchup!
7. Diet Cherry Limeade

25 calories | 0g fat | 4g carbs | 0g protein
Sonic has a great selection of drinks, milkshakes, and slushies, which are all popular. But it’s no secret that most have added sugar and carbs. But there is a uber keto-friendly drink at Sonic that is a must-try for all ketogenic dieters!
The Diet Cherry Limeade is refreshing and delicious. It’s very keto-safe and stands out from the crowd! So make sure you order this to complete your low-carb meal!
What to Avoid Ordering at Sonic
While Sonic has mouth-watering and tasty options on its menu, there are quite a few dishes that you should steer clear of! These items are usually full of sugar and breading, which is detrimental to your keto diet!
These are the foods not to order at Sonic Drive-in:
- Onions rings
- Mozzarella sticks
- Fries
- Tater Tots
- Popcorn Chicken
- Breaded Chicken Strips
- Boneless wings
- All Crispy Sandwiches
- Grilled Cheese Sandwiches
- Chilli Pie
- French Toast Sticks
- Ice Cream Desserts
- Milkshakes
- Sundaes
Final Thoughts
Sonic is a great fast food place to drive in and enjoy their carhop service. While it’s not widely known for keto-friendly meals, low-carb options are available if you know what to look for!
No more fretting at the order box and no more turning down friends because you want to choose places that have more keto-friendly options! You can order low-carb meals at your favorite fast food joint and never have to feel guilty about your food again!
We gave you the top 7 best Keto options at Sonic and some pointers on what not to order at this fast-food spot. While Sonic isn’t the best place to get keto food options, there are ways to work around it, and it’s a great way to create memories with your friends or significant other! Have fun and bon app!