Indulge in the ultimate comfort food with this Keto Classic Cheesy "Potato" Casserole—a low-carb spin on the traditional favorite that's packed with bold flavors and creamy textures. This dish swaps out starchy potatoes for tender mashed cauliflower, creating a keto-friendly base that's irresistibly rich and satisfying. Loaded with sharp cheddar and Parmesan cheeses, velvety sour cream, and hearty bacon crumbles, every bite delivers a burst of cheesy goodness and smoky decadence. Seasoned with garlic and onion powders plus a hint of scallions for added zing, this casserole is baked to golden perfection for a bubbly, crusty top. Perfect for meal prep or a crowd-pleasing side dish, it’s an ideal option for keto enthusiasts and anyone craving comfort food reinvented.
Preheat the oven to 375°F (190°C).
Remove the leaves and core from the cauliflower heads. Cut them into florets.
Fill a large pot with water, bring to a boil, and add the cauliflower florets. Boil for 8-10 minutes or until tender.
Drain the cauliflower well and transfer it to a large mixing bowl.
Mash the cauliflower with a potato masher or use a blender for a smoother texture.
Add the butter, heavy cream, sour cream, 1 1/2 cups of cheddar cheese, half of the parmesan cheese, garlic powder, onion powder, salt, and black pepper to the mashed cauliflower. Mix well until creamy and smooth.
Fold in the chopped scallions and crumbled bacon.
Transfer the mixture into a greased 9x13-inch baking dish. Spread it evenly.
Top with the remaining cheddar cheese and parmesan cheese.
Bake in the preheated oven for 30-35 minutes or until the top is golden brown and bubbly.
Remove the casserole from the oven and let it rest for 5 minutes before serving.
Garnish with additional scallions if desired and serve warm.
Calories |
3832 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 323.5 g | 415% | |
| Saturated Fat | 186.4 g | 932% | |
| Polyunsaturated Fat | 1.7 g | ||
| Cholesterol | 944 mg | 315% | |
| Sodium | 9215 mg | 401% | |
| Total Carbohydrate | 81.9 g | 30% | |
| Dietary Fiber | 22.3 g | 80% | |
| Total Sugars | 35.5 g | ||
| Protein | 162.7 g | 325% | |
| Vitamin D | 1.4 mcg | 7% | |
| Calcium | 3128 mg | 241% | |
| Iron | 7.5 mg | 42% | |
| Potassium | 4031 mg | 86% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.