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Easy Big Mac Casserole

This Easy Big Mac Casserole will give you all of the classic flavor of the popular burger from McDonald’s but without the carbs. This dish is baked with the special secret sauce, and topped with melted cheese and crunchy pickles. Serve it on a lettuce wrap or as a salad!

a slice of Big Mac Casserole on a bed of lettuce with Big Mac Sauce

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FOR THE FULL LIST OF INGREDIENTS AND COMPREHENSIVE INSTRUCTIONS, PLEASE SEE THE RECIPE CARD AT THE END OF THIS POST. BEFORE YOU SCROLL, THERE’S IMPORTANT INFORMATION IN THIS BLOG POST.

Some of my most popular recipes are casseroles. Why? They are so easy and they reheat even better the next day! That makes it great for meal prep and freezer friendly, too!

ground beef, chopped onions, raw eggs, cream cheese, garlic, and seasonings in separate glass bowls

Secret Sauce Ingredients

Oh the top secret sauce from McDonald’s! We have heard about it all of our lives, right? I’ve heard it compared to a Thousand Island dressing, but I honestly feel like it’s different!

The notable flavors come from mayo, pickle relish, and mustard. You can also taste the sugar! The sweet flavor comes from the relish and added sugar, but making your own relish is pretty easy. It’s a simple as chopping up pickles (which are naturally sugar-free) and adding your own low carb sweetener.

Here are the ingredients.

McDonald’s adds a little ketchup to give the sauce it’s signature color. While testing this recipe I found that I actually love the flavor of adding a little BBQ sauce a lot more. It’s amazing, but if you want to substitute ketchup, go for it.

You can also check out my Keto Low Carb BBQ Sauce recipe here.

mayo, shredded cheddar, heavy cream, mustard, and chopped pickles in separate glass bowls

How to Make Big Mac Casserole

  1. Preheat oven to 350 degrees.
  2. Place the ground beef in a skillet over medium-high heat. Add the garlic, onions, burger seasoning, and salt and pepper to taste.
  3. Add in Worcestershire sauce and cream cheese.
  4. Remove the skillet from heat.
  5. In a medium bowl, combine eggs, heavy cream, and all of the ingredients for the Big Mac Sauce.
  6. Pour the ground beef mixture into a 9×13 baking dish. Top with 3/4 cup of shredded cheddar.
  7. Drizzle the liquid mixture on top.
  8. Sprinkle 3/4 cup shredded cheddar cheese on top.
  9. Bake.
collage photo of 4 photos showing how to cook ground beef with onions and seasoning
Big Mac Sauce in glass bowl
cooked ground beef in a casserole dish
cooked ground beef in a casserole dish topped with shredded cheddar cheese
cooked ground beef in a casserole dish topped with shredded cheddar cheese
cooked ground beef in a casserole dish topped with shredded cheddar cheese and pickles

How to Reduce the Fat in the Recipe

  • Use ground turkey or ground chicken
  • Omit the cream cheese.
  • Use low fat or reduced-fat mayo.
  • Substitute mayo for plain, non-fat Greek yogurt.
Big Mac Casserole in a baking dish topped with pickles

What to Pair with the Casserole

Big Mac Casserole in a baking dish topped with pickles

Can You Make it Ahead

No, I wouldn’t. You could cook the ground beef ahead and refrigerate it until you are ready to make the casserole, but that’s all I would do ahead of time.

a slice of Big Mac Casserole on a bed of lettuce with Big Mac Sauce

How Long Will it Last in the Fridge

It will last 3-4 days tightly sealed in the fridge.

Freezer Tips

You can freeze this dish. I would slice it up into the servings first and then freeze it in a sealable container or bag. Defrost it overnight in the frige. Because it contains dairy, the dairy and cheese will separate when reheated.

a slice of Big Mac Casserole on a bed of lettuce with Big Mac Sauce

More Casserole Recipes

Keto Low Carb Cheeseburger Casserole
Keto Low Carb Philly Cheesesteak Casserole
Keto Low Carb Bacon Egg Cheese Breakfast Casserole
Keto Low Carb Pizza Casserole

a slice of Big Mac Casserole on a bed of lettuce with Big Mac Sauce
Print Pin
5 from 12 votes

Big Mac Casserole

This Easy Big Mac Casserole will give you all of the classic flavor of the popular burger from McDonald's but without the carbs. This dish is baked with the special secret sauce, and topped with melted cheese and crunchy pickles. Serve it on a lettuce wrap or as a salad!
Save this recipe here.
Course dinner, lunch
Cuisine American
Keyword Big Mac Casserole, keto Big Mac casserole, keto casseroles
Prep Time 15 minutes
Cook Time 45 minutes
cooling 15 minutes
Total Time 1 hour 15 minutes
Servings 6 servings
Calories 516kcal

Ingredients

  • 1 pound ground beef Or ground turkey or ground chicken.
  • 1 teaspoon Burger or Steak Seasoning You can use your favorite rub. See notes below for how to make your own.
  • salt and pepper to taste
  • 1 cup chopped onion
  • 2-3 garlic cloves minced
  • 1 teaspoon worcestershire sauce
  • 2 oz cream cheese
  • 2 eggs
  • 1/2 cup heavy whipping cream
  • 1 1/2 cups shredded cheddar cheese
  • additional sliced pickles Optional for topping.

Big Mac Sauce

Instructions

  • Preheat oven to 350 degrees.
  • Place the ground beef in a skillet over medium-high heat. Add the garlic, onions, burger seasoning, and salt and pepper to taste. Use a meat chopper and break the ground beef into chunks.
  • Add the worcestershire sauce and cream cheese. Cook until the ground beef is no longer pink and the cream cheese has melted.
  • Remove the skillet from heat. Drain excess fat from the beef if necessary.
  • In a medium bowl, combine the eggs, heavy cream, and all of the ingredients for the Big Mac Sauce.
  • Spray a 9×13 baking dish with oil or cooking spray (if necessary for the type of pan you use. I use ceramic and find it doesn't need it.) Pour the ground beef mixture into the dish. Sprinkle half of the shredded cheddar over the beef.
  • Drizzle the liquid mixture on top.
  • Sprinkle the remaining shredded cheddar cheese on top. Add additional pickles slices to the top if you wish.
  • Bake for 30-40 minutes or until the cheese has melted on top and the casserole has set. You can test if it has finished baking, by wiggling the baking dish. If the casserole has a jiggle then it has not set. Mine took 35 minutes to fully bake.
  • Cool completely before serving. The longer it cools, the better it will set. I cool for 15 minutes. If you slice into it too soon, it will fall apart. It will also fall apart if it hasn't fully baked.

Video

Notes

  • You can make your own burger seasoning using the following 1/4 teaspoon minced onions, 1/4 teaspoon rosemary, 1/4 teaspoon thyme, and 1/4 teaspoon coriander.
  • Feel free to top it with sesame seeds to make it feel more like a Big Mac!
  • Feel free to make additional sauce for drizzling.
  • Coconut Aminos or soy sauce can be substituted for worcestershire sauce. It will not taste exactly the same.
  • You can substitute white vinegars for others, but it won’t taste the same.
  • McDonald’s adds a little ketchup to give the sauce it’s signature color. During testing this recipe I found that I actually love the flavor of adding a little BBQ sauce a lot more. It’s amazing, but if you want to substitute ketchup, go for it.
  • You can substitute paprika for smoked paprika.

How to Reduce the Fat in the Recipe

  • Use ground turkey or ground chicken
  • Omit the cream cheese.
  • Use low fat or reduced-fat mayo.
  • Substitute mayo for plain, non-fat Greek yogurt.
Recipe Tools Used in this RecipeAs an Amazon Associate I earn from qualifying purchases.

Nutrition (displayed with net carbs)

Serving: 1serving | Calories: 516kcal | Carbohydrates: 5g | Protein: 26g | Fat: 45g
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Nutrition DataMacros are provided as a courtesy and should not be construed as a guarantee. This information is calculated using MyFitnessPal.com. To obtain the most accurate nutritional information in a given recipe, you should calculate the nutritional information with the actual ingredients used in your recipe, using your preferred nutrition calculator. You are solely responsible for ensuring that any nutritional information provided is accurate, complete, and useful.
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Recipe Rating




EJ

Sunday 7th of March 2021

Sorry, just went back through page and found it. Just stumbled upon your website today. Your recipes sound delicious! Do you publish a strictly keto cookbook? I ordered the Keto Essential Cookbook, but would like to have one from you, if possible. Thank you

staysnatched

Monday 8th of March 2021

No I don’t

EJ

Sunday 7th of March 2021

Where can we find the amount of carbs in your recipes? You only list the number of calories.

staysnatched

Monday 8th of March 2021

I’m glad you looked and found it!

Chloe

Saturday 20th of February 2021

This recipe is the bomb dot com. We’ve made it numerous times and it was so delicious every time.

staysnatched

Monday 22nd of February 2021

Yay! I'm so glad to hear it.

DeErica Reddish

Sunday 31st of January 2021

So easy to make, yet so delicious 😃

staysnatched

Wednesday 3rd of February 2021

Wonderful! I'm so glad you enjoyed it.

Angela

Tuesday 26th of January 2021

This recipe... *chef's kiss* It was quick, easy, and delicious! My husband and very picky toddler both LOVED this. Highly recommend!

staysnatched

Tuesday 26th of January 2021

Yay! I'm glad the family loved it!