Make sure you have a large spoon! These mashed cheesy potatoes are a combination of cauliflower and potatoes, roasted garlic and onions, and freshly grated Parmesan cheese—All finished together in the broiler until golden brown and bubbly on top! Unlike most recipes for mashed potatoes, this one is flavor-packed without adding lots a butta! Also, instead of going full starch on you with a totally potato mash, I substituted in some cauliflower and chopped onion to give the dish an extra boost of fiber. Enjoy all of this creamy goodness!
If you're looking for a healthy and comforting side dish, try mashed cauliflower and potatoes. Not only is this vegetable low in calories and carbs, but it also provides plenty of vitamins and minerals. Plus, it has a creamy texture that will be perfect for topping off your meal. Check out our easy recipe below to see how easy it is to make Cheesy Mashed Potatoes.
Mashed Cheesy Potatoes with Cauliflower Recipe

Servings: 4
Time: 30 minutes
Ingredients for Mashed Cheesy Potatoes with Cauliflower
1.1 russet potato, peeled and cut into small chunks
2. 1 medium head cauliflower, cut into small pieces
3. 4 cloves garlic, roasted and minced (sweet when roasted!)
4. 1 small onion, chopped
5. 1 tablespoon extra virgin olive oil
6. 1 tablespoon unsalted butter
7. ¾ cup freshly grated Parmesan cheese (reserve ¼ for the topping)
8. 1 cup buttermilk
9. Unrefined sea salt
10. Freshly ground black pepper
Directions
1. Cook the cauliflower pieces in salted boiling water for about 5 to 8 minutes, or until well done. Drain well and dry.

2. Cook the potato pieces in a separate pot of salted boiling water for about 8 to 10 minutes, or until tender. Drain and reserve some of the cooking liquid.

3. Sauté the onions together with the olive oil in a small pan for about 3 minutes, or until the onions are translucent.

4. In a bowl with an immersion blender (pictured below), puree the hot cauliflower with the boiled potatoes, the sautéed onions, Parmesan cheese, buttermilk, roasted garlic, sea salt, and pepper until almost smooth. If you like your mash super creamy or feel like it needs more liquid, add some of the reserved cooking liquid from the boiled potatoes.

5. Scoop the mashed potato mixture into a casserole dish and top with the rest of the grated Parmesan and butter. Place in the broiler for a few minutes until golden brown and the cheese is bubbly!
What cheese can be used for cheesy mashed potatoes with cauliflower ?
You can use the following options to replace parmesan cheese
- Cream cheese
- Greek yoghurt
- Cottage cheese
- Sour Cheese
- Ricotta
- Cashew Cheese.

Mashed cheesy potatoes with cauliflower is a delicious and healthy way to add a twist to a classic non-rice dish. Not only is it an easy and simple meal to make, but it's also packed with nutrients that will help you stay energized all day long! By giving this recipe a try, you'll be sure to love the creamy and cheesy potatoes, made even better with the subtle flavor of cauliflower! Let us know what you think by leaving a comment below!

Mashed Cheesy Potatoes with Cauliflower
Ingredients
- 1 russet potato peeled and cut into small chunks.
- 1 medium head cauliflower cut into small pieces
- 4 cloves garlic roasted and minced (sweet when roasted!)
- 1 small onion chopped
- 1 tablespoon extra virgin olive oil
- 1 tablespoon unsalted butter
- ¾ cup freshly grated Parmesan cheese reserve ¼ for the topping
- 1 cup buttermilk
- Unrefined sea salt
- Freshly ground black pepper
Instructions
- Cook the cauliflower pieces in salted boiling water for about 5 to 8 minutes, or until well done. Drain well and dry.
- Cook the potato pieces in a separate pot of salted boiling water for about 8 to 10 minutes, or until tender. Drain and reserve some of the cooking liquid.
- Sauté the onions together with the olive oil in a small pan for about 3 minutes, or until the onions are translucent.
- In a bowl with an immersion blender (pictured below), puree the hot cauliflower with the boiled potatoes, the sautéed onions, Parmesan cheese, buttermilk, roasted garlic, sea salt, and pepper until almost smooth. If you like your mash super creamy or feel like it needs more liquid, add some of the reserved cooking liquid from the boiled potatoes.
- Scoop the mashed potato mixture into a casserole dish and top with the rest of the grated Parmesan and butter. Place in the broiler for a few minutes until golden brown and the cheese is bubbly!
Frequently asked Questions
Is mashed cauliflower healthier than mashed potatoes?
Yes, you save a lot of calories when you replace cauliflower with potatoes
What do you add to cauliflower to thicken mash?
Corn flour or tapioca flour can be added to cauliflower to thicken the mash.
How do you thicken mashed cauliflower Keto?
You can thicken the cauliflower for keto by cooking it over the stove and let it simmer for a few minutes .
Why is mashed cauliflower good for you?
Cauliflower is loaded with antioxidants and helps in prevention of infections and inflammations.
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