This Keto Big Mac Casserole has all the delicious flavors of a Big Mac without all the carbs. Juicy ground beef, homemade burger sauce, melty cheese, pickles, onions, and sesame seeds. Not only is it quick and easy to make, with less than 30 minutes of cook time, but it is also kid-friendly.
Ingredients in Keto Big Mac Casserole
Ingredient Notes
How to make Low Carb Big Mac Casserole
Step by Step Directions
STEP 1: Preheat oven to 350°F. In a large skillet over medium heat, brown the ground beef, minced onion flakes, garlic, Worcestershire sauce, sea salt and black pepper. Drain excess grease and transfer to a large casserole dish.
STEP 2: To the ground beef, add 1 cup sharp cheddar cheese, mozzarella cheese, and ¾ cup burger sauce. Mix until all ingredients are well combined.
STEP 3: Flatten down into a nice and even, compact layer. Top with pickle slices.
STEP 4: Sprinkle the remaining cup of sharp cheddar cheese over top. Sprinkle the sesame seeds on top of the cheese.
STEP 5: Bake for 20 minutes. Turn the oven up to a high broil and bake for another 5 minutes.
STEP 6: Top the Big Mac casserole with remaining burger sauce and serve!
Recipe Tips and Variations
Frequently Asked Questions
While many recipes will call for French dressing, or even just using Thousand Island dressing, Big Mac sauce is actually neither of those. It is a blend of mayo, ketchup, mustard, sweet pickle relish, vinegar, and other spices and seasonings. For this recipe I use my own homemade burger sauce recipe.
You can pile this casserole on top of shredded lettuce to make a delicious Big Mac salad. Alternatively, you can try my Bacon Cheeseburger Salad Recipe.
More low carb ground beef recipes
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Keto Big Mac Casserole
- Total Time: 35 minutes
- Yield: Makes 6 Servings 1x
- Diet: Gluten Free
Description
This Keto Big Mac Casserole has all the delicious flavors of a Big Mac without all the carbs. Juicy ground beef, homemade burger sauce, melty cheese, pickles, onions, and sesame seeds. Not only is it quick and easy to make, with less than 30 minutes of cook time, but it is also kid-friendly.
Ingredients
- 2 pounds ground beef (I get all my meat here)
- 2 tablespoons dried minced onions
- 1 tablespoon Worcestershire sauce
- 2 cloves garlic, minced
- sea salt and black pepper, to taste
- 2 cups shredded sharp cheddar cheese, divided
- 1 cup shredded mozzarella cheese
- 1 cup Burger Sauce, divided (get the recipe here)
- 1 cup dill pickle slices, about 20
- 2 tablespoons toasted sesame seeds
- 1 large head of romaine lettuce, chopped, optional
Instructions
- Preheat oven to 350°F
- In a large skillet over medium heat, brown the ground beef, minced onion flakes, garlic, Worcestershire sauce, sea salt and black pepper. Drain excess grease and transfer to a large casserole dish.
- To the ground beef, add 1 cup sharp cheddar cheese, mozzarella cheese, and ¾ cup burger sauce. Mix until all ingredients are well combined. Flatten down into a nice and even, compact layer. Top with pickle slices.
- Sprinkle the remaining cup of sharp cheddar cheese over top. Sprinkle the sesame seeds on top of the cheese.
- Bake for 20 minutes. Turn the oven up to a high broil and bake for another 5 minutes.
- Plate each serving on top of a bed of shredded lettuce and top with remaining burger sauce.
Notes
- net carbs per serving: 5.8g
- Storage: Store the leftover keto Big Mac casserole in the refrigerator for up to 5 days.
- Reheating: Reheat the leftover Big Mac casserole in the microwave or in a pan on the stovetop.
- Prep Time: 15 Minutes
- Cook Time: 20 Minutes
- Category: Casserole recipes
- Method: Baking
- Cuisine: American
Nutrition
- Calories: 556
- Fat: 51g
- Carbohydrates: 8.8g
- Fiber: 3g
- Protein: 45g
Joy says
Wow! That was good! Used turkey instead of beef and it still tasted like a Bog Mac! Also, I'm sure I will use the dressing recipe in other ways. Delicious! Thsnk you for sharing with us!
LeeLee says
I just put mine in the oven and can't wait for it to come out.. I'm so excited!!! I never had Russian dressing before and was not sure what to expect, but after reading the comments I decided to give it a try.
Cat says
I was a bit sceptical at first, but I made this last night and OMG. THIS TASTES JUST LIKE A BIG MAC. We were floored. It really truly does. I will definitely be using this low carb recipe in my diet ???? Thanks girl
Peace Love and Low Carb says
Yay!! So happy you liked it. It always gets weird comments on Facebook... UNTIL people actually try it 🙂
Mimi says
Omg! Just made the casserole, so yummy! Will definetly be on our dinner rotation! Thanks so much!
Emma says
Made this last night and it literally tastes and smells like a big mac! My whole family loved it, definitely going on regular rotation! Thanks for an awesome recipe , I have been telling friends and LCHF groups all about it!
Peace Love and Low Carb says
Awesome! So happy you enjoyed it. It's a favorite in our house as well!
Sara says
I love this! One of new faves. (I really miss Big Macs!). I didn't have the patience to make the Russian dressing, so I took the lowest card bottle thousand island I could find, mixed it half & half with mayo and added salt, pepper & garlic powder. I'm sure your Russian dressing would have been way tastier, but this worked for me. Thank you!
Scoob says
Nevermind, yours is home made. Dang again
Mary says
Made this last night for the hubster, who is still kind of skeptical about low-carb. He LOVED it--ate ALL of his, then finished mine! He said the fresh made Russian Dressing really topped it off perfectly. Gave it to him for lunch today, and he said, "Just as good cold!" Thanks so much for this recipe!
Ana L.L. says
Your recipes are bomb! thank you for making low carb diet so much more delicious and not boring! I did the big mac casserole and my husband wanted me to make more the next day. However, it's important to mention to not put too much salt during the preparation of the ground meat because once we add all the cheese, it'll make everything much saltier. Thank you and keep posting amazing recipes
Connie Stewart says
I can't tell you how much I LOVED this recipe! I doubled the Russian dressing so it was always ready to go. I use it in Deviled Eggs too (delish!) I work from home so most days I need a quick lunch. I cook a pre-made patty on the stove, top it with lettuce, pickles, cheese, and the dressing. It's the most incredible quick lunch EVER! Love your site! Thank you for sharing!
Mary says
Awesome idea for lunch Connie--I will try this tomorrow!