Easy Big Mac Casserole with Special Sauce
Published Jan 18, 2024 Updated Jul 08, 2025
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Craving all the flavors of a Big Mac but looking for something cozier, easier, and homemade? This Big Mac Casserole is the answer! This is an easy dinner recipe that combines juicy ground beef, creamy Big Mac sauce, melty cheddar cheese, and golden sweet potatoes into one irresistible, family-friendly dinner, no drive-thru required! The best part? It’s ready in under 30 minutes.
Table of Contents
Why You’ll Love This Recipe
Y’all, I’m not exaggerating, this might just be the best recipe I’ve ever made. I know that sounds dramatic, but once you take a bite, you’ll see exactly what I mean. It’s everything you love about the classic flavors of a Big Mac, just baked into a fork-friendly dish that’s a hit with the whole family.
It’s also so much healthier than a fast food run. I used lean ground beef, a homemade high-protein Big Mac sauce, and even added sweet potatoes to boost the nutrition. And if you’re watching your carbs, it’s super simple to turn this into a keto Big Mac casserole by skipping the potatoes altogether.
Already love my Healthy Big Mac Salad? Then this casserole version is a must try! Warm, hearty, and extra satisfying. If you’re looking for more comfort food, try my Cheesy Taco Casserole or Philly Cheesesteak Casserole, both are family faves!
Ingredients You’ll Need
Here’s everything that brings this Big Mac casserole recipe to life. Be sure to check the recipe card below for the full recipe and exact measurements.
- Lean ground beef: The hearty base of our casserole. You can also sub in ground turkey.
- Yellow or white onion: Adds sweetness and flavor to the beef mixture.
- Minced garlic: Rounds out the aromatics beautifully.
- Worcestershire sauce: Adds rich, savory depth. (Use gluten-free if needed!)
- Spices: Garlic powder, onion powder, salt, black pepper, and ground mustard bring that unmistakable “burger” flavor.
- Sweet potatoes: I used these for a healthier twist, but crispy tater tots, russet potatoes, or even French fries will work too!
- Shredded cheddar cheese: Melty cheese heaven. You can also use your favorite cheese blend.
- Shredded lettuce, cherry tomatoes, and dill pickles: The classic toppings take this casserole over the top.
- Homemade burger sauce: This big mac sauce is a homemade blend of cottage cheese (or Greek yogurt), mayonnaise, ketchup, mustard, chopped pickles or dill relish, and seasoning. It’s creamy, tangy, and tastes just like thousand island dressing.
How to Make Big Mac Casserole
Step 1: Preheat your oven to 375°F (190°C). Sauté the sweet potato cubes (or your potato of choice) in a bit of olive oil until fork-tender. For frozen tater tots or fries, cook according to package instructions.
Step 2: In a separate large skillet, over medium-high heat, cook the ground beef, breaking it up as it browns. Drain excess grease. Stir in ¾ cup diced onions and garlic. Cook until the onion is soft and fragrant. Add a splash of Worcestershire sauce, garlic powder, onion powder, mustard powder, salt, and black pepper to the ground beef mixture. Stir to coat.
Step 3: In a greased 9×13 baking dish (or casserole dish), layer the sautéed potatoes and seasoned beef. Drizzle in half the creamy Big Mac sauce and toss to combine.
Step 4: Sprinkle shredded cheese generously over the top of the casserole.
Step 5: Bake for 20-25 minutes until the cheese is melted and bubbly. Let cool slightly.
Step 6: Just before serving, top the casserole with shredded lettuce, halved cherry tomatoes, diced pickles, and a drizzle of the remaining Big Mac sauce.
How to Make Big Mac Sauce
Step 1: Add all the sauce ingredients to a food processor and blend until smooth. It should have the color and consistency of Thousand Island dressing. Enjoy!
Mac’s Pro TipS
Storage + Reheating Tips
This casserole is just as tasty the next day, maybe even better!
- Fridge: Store leftovers in an airtight container for 4-5 days.
- Freezer: Yes, you can freeze Big Mac Casserole! Freeze the cooked and cooled casserole in a freezer-safe container or tightly wrapped baking dish for up to 3 months. For best results, thaw overnight in the fridge before reheating.
- Reheating: Use the microwave for quick lunches or pop it back in the oven for about 10 minutes to re-crisp the cheese.
Got leftover Big Mac sauce? Use it as a salad dressing, burger topping, or dip for sweet potato fries!
Recipe FAQs
Yes! You can assemble the casserole up to the baking step, cover it with foil, and refrigerate for up to 24 hours before baking. It’s a great make-ahead option for busy weeknights or gatherings.
Absolutely. Just skip the potatoes and follow the rest of the recipe as-is. You’ll still get all that classic flavor without the carbs.
Sweet potatoes add a nutritious twist, but you can use russet potatoes, tater tots, hash browns, or even French fries, just cook them first!
Yes! Especially with the homemade Big Mac sauce, melted cheese, dill pickles, and that ground beef mixture. It’s like your favorite burger in casserole form.
This Big Mac Casserole is fast food meets family dinner. Quick, comforting, and made with real ingredients. If your crew loves bold flavors and cheesy casseroles, this one’s for you.
Let me know in the comments if you make it. And don’t forget to try my Cheesy Loaded Cauliflower Casserole for another weeknight winner!
More Casserole Recipes
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Easy Big Mac Casserole with Special Sauce
Ingredients
Casserole
- 1.5-2 pounds ground beef or ground turkey
- 1 cup finely diced onion 3/4 cup sauteed with the ground beef. 1/4 cup kept raw and reserved for top of the casserole.
- 2-3 cloves garlic minced
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 tsp garlic powder
- 1/2 tsp ground mustard powder
- 1/2 tsp onion powder
- 1 large sweet potatoes peeled and cut into small cubes
- 2 cups cheddar cheese shredded
- 1 cup shredded lettuce
- 1 cup cherry tomatoes halved
- 1/2 cup diced pickles
- Splash of Worcestershire sauce
Sauce
- 1 cup cottage cheese sub plain Greek yogurt or mayo
- 1 tbsp mayo
- 3 tbsp ketchup
- 2 tbsp yellow mustard
- 1/2 tsp paprika
- 1-2 tbsp grated sweet onion
- 1/2 tsp onion powder
- 1/2 tsp garlic powder
- 2 tbsp pickles chopped or dill relish
- 1 tsp white vinegar
- 2 tsp pickle juice
- Splash of Worcestershire sauce
Instructions
Casserole
- Preheat your oven to 375°F (190°C). In a large skillet over medium heat, brown the ground beef, breaking it into crumbles. Drain any excess fat. Add ¾ cup diced onions and minced garlic to the skillet with the cooked beef. Cook until the onions are tender and translucent.
- Season the beef mixture with a splash of Worcestershire sauce, ground mustard, garlic powder, onion powder, salt, and black pepper.
- In a separate skillet, sauté the sweet potato cubes until they are just tender.
- In a greased 9×13 casserole dish, add the cooked sweet potatoes, ground beef mixture, and half the Big Mac sauce. Mix until everything is combined. Sprinkle the shredded cheddar cheese on top.
- Bake the casserole in the preheated oven for about 20-25 minutes or until the cheese is melted and bubbly. Remove the casserole from the oven and let it cool slightly.
- Top the casserole with shredded lettuce, halved cherry tomatoes, diced pickles, and 1/4 cup diced onions. Drizzle with more Big Mac Sauce.
Sauce
- Add all the sauce ingredients except the chopped pickles to a food processor and blend until smooth. Once blended, add in the diced pickles and mix with a spoon until combined.
Notes
Storage + Reheating Tips
- Fridge: Store leftovers in an airtight container for 4-5 days.
- Freezer: Yes, you can freeze Big Mac Casserole! Freeze the cooked and cooled casserole in a freezer-safe container or tightly wrapped baking dish for up to 3 months. For best results, thaw overnight in the fridge before reheating.
- Reheating: Use the microwave for quick lunches or pop it back in the oven for about 10 minutes to re-crisp the cheese.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
This. Was. Amazing!!
I didn’t have any sweet potatoes left so I used the few straggler butter potatoes I had on hand and WOW. So good!!! My house of men gobbled this up!
So happy to hear it was a hit! Thanks so much.
Yum! The sweet potato makes this very filling. Love the flavors, it’s a keeper!
So glad you love the sweet potato addition! Thanks so much
Made this and put it over tots instead of sweet potatoes bc I have a husband who eats like a kid 😂 so yummy! Loved it!
I love the idea of tots! I think my kiddos would love that too. Glad it was a hit.
I made this last week as a meal prep, and I am absolutely addicted to it! I loved it so much I decided to make it again this week! It stores nicely in the fridge, and it tastes phenomenal cold or warmed up!
What a great comment. I am so happy to hear you are a fan of this!
Incredible. My boyfriend says this is one of his new favorite dinners! I added in some sweet pickled jalapeños to the chopped pickle topping. Also didn’t have any mayo on hand but just used extra Greek yogurt. Worked just fine in a 9×9 dish. So glad to have this in our rotation now!
So happy to hear this Audrey! I am glad you enjoyed it. I love the addition of the jalapeños. That’s genius!
This was so yummy and easy! I did a lot of quick substitutions due to time and using what I had on hand!
-Ground chicken instead of beef (extra browned)
-kindred burger sauce (not homemade)
-eye balled the seasoning (bc yolo 🙂
-splash of soy instead of Worcestershire
Turned out great! My particular husband had two bowls! Easy go-to, weekend night meal!
I’m so happy this turned out great for you! I love hearing about the tweaks you’ve made to the recipe—thank you for sharing.
Best dinner I’ve made in a while!! Sauce tastes exact to real Big Mac sauce.
Yay! Thanks for letting me know it was a hit.
Okay YUMMMM!! Made this for dinner tonight and already looking forward to the leftovers we get to have later next week! It hits all the essentials of a Big Mac but a bit healthier!
This is what I love to hear! Thank you so much for the review!
The sauce is amazing!!! And I’m a reformed Big Mac gal… and pickle lover. Tastes just like the real deal. Omg.