I remember a hectic weeknight when dinner was looming, and I needed something quick. Tossing together ground beef, Worcestershire sauce, and diced tomatoes with those hearty Russet Potatoes made it so easy. I added garlic powder, onion powder, and salt for extra flavor. My family loved it, and it quickly became a go-to meal for busy nights when time was tight.
Baking everything together lets the flavors meld and keeps the beef juicy. This simple method makes all the difference in bringing those Big Mac flavors to life.
Ingredients in The Best Big Mac Casserole
Each ingredient in this casserole contributes to those familiar Big Mac flavors while keeping it low-carb and hearty. Here’s what you’ll need:
- Ground Beef: The main protein that gives the dish its richness.
- Worcestershire Sauce: Adds depth and umami, enhancing the savory notes of the beef.
- Garlic Powder: Provides a fragrant punch that complements the other flavors.
- Onion Powder: Boosts the overall flavor profile and works well with the fresh onion.
- Russet Potatoes: These provide a comforting base and help create that classic Big Mac vibe. Make sure they’re diced evenly for even cooking.
- Olive Oil: Used for sautéing the onion and helps to add richness to the dish.
- Salt + Pepper: Essential for seasoning and bringing out the flavors of all the ingredients.
- White Onion: This enhances flavor and moisture, keeping the beef juicy.
- Diced Tomatoes: These bring moisture and acidity, balancing the richness of the beef.
- Dill Pickles: They add a tangy crunch that brightens up the dish.
- Dill Pickle Juice: A splash of acidity that intensifies the pickle flavor.
- Ketchup: Adds sweetness and a hint of tang.
- Mustard: Offers a zesty kick that balances the richness of the beef and cheese.
- Sesame Seeds: These sprinkle on top for a touch of crunch.
- Cheddar Cheese: Adds melty goodness and a sharp flavor that complements the beef.
- Dill Pickle Coins: They contribute to the texture and briny flavor that’s essential in mimicking a Big Mac.
How to Make The Best Big Mac Casserole
It takes about 60 minutes from prep to table to whip up this casserole. It’s a breeze to make, especially when you’re craving those Big Mac flavors without the fuss of assembling burgers. Let’s get cooking!
Preheat Oven: Set your oven to 400°F. This gets the heat going for those potatoes.
Prepare Potatoes: Slice the Russet potatoes into ½ inch rounds, then dice them into ½” cubes. Toss them in a dish with olive oil and a good sprinkle of salt and pepper. Cook for 25-35 minutes until they’re nearly fork-tender and starting to look golden.
Cook Onion: In a large skillet over medium-high heat, add the diced white onion. Cook for 2-3 minutes until they’re soft and translucent. You’ll hear a gentle sizzle as they cook.
Cook Beef: Push the onions to one side and add the ground beef. Cook until it’s about 80% done, then mix in Worcestershire sauce and seasonings. This keeps the meat juicy; it’ll finish cooking in the oven.
Combine Ingredients: Remove the potatoes from the oven and lower the temperature to 350°F. Stir in the beef mixture, drained diced tomatoes, and dill pickle coins until evenly mixed.
Add Toppings: Sprinkle shredded cheddar cheese on top. Cover with tinfoil sprayed with cooking spray to prevent drying out. Cook for 20 minutes; the cheese should be melted and bubbly.
Serve: Remove the foil and enjoy your Big Mac in casserole form!
Switch It Up: Easy Variations
As a busy mom, I love having options that keep dinner fun. Here are some variations that can shake things up while sticking to the core flavors of this casserole:
Tater Tot Swap: You can replace the russet potatoes with tater tots for a different casserole style that’s crispy and fun. Just layer them in the dish instead of the diced potatoes.
Thousand Island Dressing Alternative: You can use Thousand Island dressing instead of the fry sauce for a quicker option.
Additional Toppings: Consider adding crispy bacon, sliced avocado, sautéed mushrooms, a fried egg, or some aioli for extra flavor. These can elevate every bite and add a bit of crunch or creaminess.
Feel free to mix and match these options to keep your family guessing and excited about dinner!
Keeping the Big Mac Casserole Fresh
Store any leftovers in an airtight container in the fridge for up to three days. If you want to keep it longer, this casserole freezes well for about three months. Make sure to let it cool completely before sealing it up; that helps avoid ice crystals and keeps it from getting soggy.
When it’s time to reheat, I recommend using the oven. Preheat it to 350°F and cover the casserole with foil to keep it moist. Heat for about 20-30 minutes until it’s warmed through. You can also add a splash of dill pickle juice to amp up the flavor while it reheats.
What to Serve with This Casserole
Serving this Big Mac Casserole takes it from a cozy dish to a full meal. A few thoughtful sides can enhance the flavors and create a well-rounded dinner.
Perfect Side Dishes
Sweet Potato Fries: These add a nice sweetness that contrasts well with the savory casserole.
Parmesan Carrot Fries: A tasty alternative that brings a bit of crunch and flavor.
Black Bean and Couscous Salad: This adds a hearty element and some freshness to your plate.
Simple Tossed Green Summer Salad: A light salad can balance out the richness of the casserole.
The Best Toppings
- Ketchup: A drizzle of ketchup can add a touch of sweetness that complements the casserole nicely.
I can’t wait for you to try this casserole! Which sides do you think would work best with it?
The Best Big Mac Casserole (Low Carb) for Family Dinner
Ingredients
Method
- Preheat the oven to 400°F and prepare the veggies. Slice potatoes into ~½ inch rounds, and then dice them into ½” cubes. I use this vegetable chopper and it’s effortless. Dice the white onion the same.
- Add the diced potatoes to a baking dish and coat in olive oil and salt + pepper. Pop them into the oven for 25-35 minutes.** Depends on oven cooking time, should be almost fork tender before adding the meat.
- For the fry sauce, combine all of the ingredients in a glass measuring cup or small bowl and stir. If you’d like, you can also add minced white onion to the sauce for more texture.
- Then, heat a large skillet to medium-high heat (oil if needed). Add the diced white onion and sauté for a few minutes. Push to one side and add the lean ground beef Mix until the ground beef is ~80% cooked, then mix in the Worcestershire sauce and seasoning. Remove from heat (meat will finish cooking in the casserole).
- By this time, the potatoes should be close to golden brown. Remove the dish from the oven but change the temperature to 350°F. Add ground beef mixture, canned tomatoes (drained), and ½ of the fry sauce on top of the potatoes. Stir it all together
- Top the dish cheese, pickles, and sesame seeds. Cover the casserole with tinfoil sprayed with cooking spray (tinfoil is a must, otherwise it will significantly dry out). Bake for another 20 minutes.
- Remove the tinfoil, serve with shredded lettuce and add remaining fry sauce. Enjoy!
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