Cauliflower, potato, and cheddar bake is a perfect side to either lighten up your usual potato dish or to add in some extra vegetables. It is super easy to make and will taste great any time of year, not just at Thanksgiving.

Partial image of baked casserole in individual shallow purple ramekins.
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About this Recipe

  • Easy: This cauliflower and potato bake is super easy and makes a great side dish. You simply cook the potatoes and cauliflower in boiling water to soften them, divide them into individual baking dishes, sprinkle cheese on top, pour a little milk over each, and top with a dab of butter. Bake them until the cheese is melted, bubbling, and browned a bit.
  • Flexible: If you don’t have cute individual dishes, don’t worry! This recipe works just great for one casserole dish too.
  • Nutritious: If you love au gratin potatoes or cheesy potatoes, you’ll love this twist that’s slightly lower in calories and carbs.
Overhead of baked casserole in purple ramekins, on wooden deck.

Is a Mandoline Necessary?

A mandoline isn’t an essential kitchen tool, but it’s a great one to have on hand. It is perfect to slice potatoes for stovetop scalloped potatoes, or slice onions for pickled red onions.

More Great Side Dishes

Recipe

Cauliflower, Potato & Cheddar Bake

4.32 from 41 votes
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes
Servings: 4 servings
Cauliflower, potato, and cheddar bake is perfect when you are looking for a slightly healthier potato side with plenty of cheesy goodness.
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Ingredients 

  • 3/4 pound Yukon Gold potatoes (about 3 medium, peeled and sliced 1/4 inch thick)
  • salt and pepper to taste
  • 1/2 small head cauliflower (~1 pound), sliced 1/4 inch thick
  • 2 teaspoons fresh thyme leaves, chopped plus more for (optional) garnish
  • 3/4 cup shredded sharp cheddar
  • scant 1/4 cup milk or chicken broth
  • 1/2 tablespoon unsalted butter

Instructions 

  • Preheat oven to 450°F. Spray three 12-ounce baking dishes (or a 1 quart baking dish) with non-stick spray.
  • In a large pot, cover potatoes with cold salted water. Bring to a boil. Once boiling, add cauliflower and cook about 8 minutes or until potatoes are just cooked through and cauliflower is tender. Drain in colander and let sit at least five minutes.
  • Divide the cauliflower/potatoes between the three prepared baking dishes. Sprinkle with pepper and thyme. Top with cheddar (divide evenly between three dishes). Pour milk over each (divide evenly between three dishes) and dot with butter. Bake for 10-15 minutes or until cheese is golden brown and bubbling.

Notes

  • If you use a single larger baking dish, I would recommend doing two layers (potato/cauliflower, thyme/pepper, cheese, then repeat and then finish with milk and butter).

Nutrition

Serving: 1of 4, Calories: 286kcal, Carbohydrates: 21g, Protein: 14g, Fat: 17g, Saturated Fat: 9g, Polyunsaturated Fat: 5g, Trans Fat: 1g, Cholesterol: 48mg, Sodium: 600mg, Fiber: 3g, Sugar: 2g

Nutrition information is automatically calculated, so should only be used as an approximation.

Did You Make This?Share a comment and rating below! I love hearing what you think!
Closeup of baked casserole, with fork, on black cloth.
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4.32 from 41 votes (41 ratings without comment)

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342 Comments

  1. NancyM says:

    And I “like” Big Kitchen on Facebook too

  2. Rachael {SimplyFreshCooking} says:

    I love the green bean casserole!

    This looks yummy btw! Don’t you just LOVE slicing potatoes with a mandolin?? The first time I used it I was especially impressed and thankful that I didn’t have to slice perfect/thin potato rounds anymore. Yay. :) This one looks so much nicer than mine though!

  3. Nancy M says:

    I LOVE you on Facebook.

  4. Nancy M says:

    I am a long time subscriber to your blog…..will miss you this week

    1. Rachel says:

      Will miss you too! xoxo

  5. Marissa says:

    My favorite side dish is zucchini boats, they are hallowed out zucchini with spinach, cheese, and bacon bits on top. So good!

  6. Amelia says:

    I like Rachel Cooks on FB.

  7. Amelia says:

    That recipe sounds delicious! Can’t wait to give it a try. My favorites are mashed potatoes, and sweet potatoes!

  8. Sabrina5000 says:

    I already follow Big Kitchen on Twitter

  9. Cassie | Bake Your Day says:

    These colors are perfect! I do love my mandoline but I don’t use it nearly enough. This looks so good!

  10. Sabrina5000 says:

    I already follow Rachael Cooks on Twitter