Bacon Cheeseburger Casserole transforms your favorite comfort food into a hearty, low-carb meal packed with flavor and texture in every cheesy, savory bite.
It’s a satisfying bake that brings together crispy bacon, seasoned ground beef, and a creamy cauliflower topping—perfect for weeknights or meal prepping.
Inside the Bake: Main Ingredients in Bacon Cheeseburger Casserole
- Bacon – Adds rich, smoky flavor and crispy texture that weaves through every bite.
- Ground Beef – The foundation of this casserole, seasoned and juicy, creating that classic cheeseburger profile.
- Frozen Cauliflower Florets – Lightens the dish while delivering a creamy, mashed-potato-like topping that ties it all together.
- Nutritional Yeast – Delivers a cheesy depth without dairy, enriching the cauliflower layer with umami notes.
- Eggs – Bind the cauliflower topping into a smooth, cohesive layer that bakes beautifully.
- Onion & Garlic – Essential aromatics that enhance the beef mixture with a savory base.
- Ketchup, Mustard, & Mayo – A trio of condiments that mimic the classic cheeseburger experience, lending tang, creaminess, and zest.
How to Make It: Bacon Cheeseburger Casserole, Step by Step
Begin by crisping the bacon and setting it aside—you’ll want it to stay crunchy. Steam your cauliflower until tender, then blend it with seasonings, eggs, and nutritional yeast until silky smooth.
Brown your beef with onions and garlic, then stir in ketchup, mustard, and mayo for that unmistakable cheeseburger flavor. Fold in half the bacon for extra depth.
Layer the beef mixture in a greased baking dish, then top with the creamy cauliflower blend. Finish it with the remaining bacon and a sprinkle of pepper.
Bake until golden on top, then garnish with fresh green onions for a bright, crisp contrast.
Pro Tips & Tasty Twists for Your Casserole Creation
For an even cheesier experience, mix in shredded cheddar or Monterey Jack into the cauliflower blend or beef layer. You can also play with heat—add diced jalapeños or smoked paprika to the beef for a spicy kick.
To keep things dairy-free, stick with the nutritional yeast and skip the cheese. Prefer a chunkier texture? Don’t overblend the cauliflower—leave it a bit rustic. If you’re watching carbs, this recipe is keto-friendly as is, but you can cut back slightly on ketchup or use a low-sugar variety.
This casserole is ideal for prepping ahead; the flavors meld and deepen after a night in the fridge.
Store It Right: Keeping Bacon Cheeseburger Casserole Fresh
Leftovers store well in an airtight container in the fridge for up to 4 days. For longer storage, freeze individual portions tightly wrapped or in freezer-safe containers for up to 2 months.
To reheat, microwave in short bursts until hot or warm in the oven at 350°F until heated through. The bacon won’t be as crisp, but the flavor stays bold and comforting.
Bacon Cheeseburger Casserole
Ingredients
- ½ yellow onion finely chopped
- ¼ cup mustard
- ¼ cup nutritional yeast
- ½ pound bacon
- 2 x16 oz bags frozen cauliflower florets
- 2 large eggs
- ½ teaspoon garlic powder
- Salt and pepper to taste
- ¼ cup mayonnaise
- ½ –1 teaspoon salt
- ½ cup ketchup
- ½ teaspoon onion powder
- 2 cloves garlic minced
- ¼ teaspoon ground white pepper
- 2 pounds ground beef
- Chopped green onions for garnish
Instructions
- Preheat the oven to 400°F and grease a spacious baking dish with your preferred cooking fat. In a skillet, cook the bacon over medium heat until crisp, then chop it into small pieces and reserve. Steam the cauliflower florets until tender enough to pierce with a fork. Transfer them to a high-powered blender and process until they form a cohesive blend. Incorporate the nutritional yeast, garlic powder, onion powder, white pepper, salt, and eggs, then blend until the mixture becomes completely smooth and creamy; set aside.
- Meanwhile, in a large sauté pan, cook the ground beef with the chopped onion and minced garlic, breaking it into small bits as it browns. Lightly season with salt during the browning process. Once cooked through, stir in the ketchup, mustard, and mayonnaise. Mix well, then season again with salt and pepper to your preference. Fold in half of the reserved bacon.
- Distribute the beef mixture evenly in the prepared baking dish. Carefully spread the cauliflower purée on top, smoothing it out into a uniform layer. Scatter the remaining bacon over the surface and add a light sprinkle of freshly ground black pepper.
- Bake uncovered for 20–25 minutes, or until the top layer develops a slight golden hue. Garnish with freshly chopped green onions just before serving.
