Craving Arby’s but staying keto? This copycat beef and cheddar sandwich delivers all the flavors you love with only 4 net carbs per serving! I’ve recreated that signature tangy Arby’s sauce and creamy cheese sauce using keto-friendly ingredients that taste just like the original.
Using tender sliced roast beef, homemade low-carb buns, and that perfectly spiced sauce, you’ll never miss the drive-thru version. The best part? You can make these at home in just 20 minutes and know exactly what’s going into your food.
This recipe has become my go-to when I want something hearty and satisfying without breaking my carb count. The combination of savory roast beef, melted cheddar cheese sauce, and that iconic Arby’s flavor will have you coming back for seconds!
How To Make Keto Copycat Arby’s Beef and Cheddar
Step 1. I love starting with the cheese sauce because it needs time to melt properly and stay smooth. Grate your cheddar cheese from a block rather than using pre-shredded – it melts so much better and creates that silky texture we’re after. Keep the heat on medium-low and stir constantly to prevent any lumps from forming.
Step 2. Now for that famous Arby’s sauce! I’ve tested this recipe countless times to get the flavor just right, and the key is letting all those spices blend together. The apple cider vinegar gives it that signature tang, while the Swerve brown sugar substitute provides the subtle sweetness that makes this sauce so addictive.
Step 3. Here’s where the magic happens – layering that sauce on the bottom bun first ensures every bite is packed with flavor. I like to be generous here because that tangy-sweet sauce is what really makes this sandwich taste like the original. Don’t be shy with it!
Step 4. The roast beef is the star of the show, so pile it on! I prefer using deli roast beef that’s sliced medium-thick – it gives you that perfect meaty bite without being too chewy. If you want to warm it up slightly, just give it a quick 30 seconds in the microwave.
Step 5. This is my favorite part – drizzling that creamy cheese sauce over everything! The way it melts into all the nooks and crannies of the roast beef is pure perfection. Make sure your cheese sauce is still warm and pourable for the best coverage.
Keto Copycat Arby's Beef and Cheddar
Ingredients
For the sandwich
- 4 Keto buns
- 1 lb. Sliced deli roast beef
- 1 Tbsp. Melted butter
- ½ tsp. Black sesame seeds
For the cheese sauce
- 4 oz. Cheddar cheese from a block
- ¼ C. Heavy whipping cream
- Pinch of paprika
For the Arby’s sauce
- ¼ C. Sugar free ketchup
- ½ tsp. Paprika
- 1 Tbsp. Water
- 2 tsp. Apple cider vinegar
- 1 Tbsp. Swerve brown sugar substitute
- 1⁄4 tsp. Onion powder
- ¼ tsp. Garlic powder
- Dash of hot sauce
- Salt to taste
Instructions
- Mix Arby's sauce ingredients in bowl until combined
- Melt cheese, cream and paprika over medium-low heat
- Spread sauce on bottom buns, add beef and cheese sauce
- Top with more sauce, close sandwich and brush with butter
Notes
Nutrition
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