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.

I’ve been dying for a mandoline so when Big Kitchen approached me about teaming up, a mandoline was my first choice. I used it to cut up the potatoes and cauliflower for this recipe.

The mandoline took a little getting used to, but I have big plans for it. Once I figured it out, it is a breeze to use. It has a button that you can just press to adjust thickness and it also has blades to julienne and cube. It will be perfect to slice potatoes for stovetop scalloped potatoes, or slice onions for pickled red onions.

Another great feature is the storage holder for the extra blades. This is a huge safety advantage–this way they aren’t loose in your pantry or wherever you store them. You can even use it as a drying rack to dry the blades after using them.

And I just love these adorable purple dishes! I can’t wait to make individual servings of all sorts of things in them. My next recipe using these dishes will probably be macaroni & cheese but that should come as no surprise. 

Overhead of baked casserole in purple ramekins, on wooden deck.

Back to this cauliflower, potato, and cheddar bake. It’s super easy and makes a great side dish. I 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. Don’t they look delicious?

PS If you don’t have cute purple ramekins, don’t worry! This recipe works just great for one casserole dish too.

More great vegetable sides: 

Looking for more vegetable recipes to round out your Thanksgiving menu? Try some of my favorites:


Partial image of potato cauliflower bake in individual purple ramekins.

Cauliflower, Potato & Cheddar Bake

Yield: 4 servings
Prep Time: 15 minutes
Cook Time: 15 minutes
Total Time: 30 minutes

Cauliflower, potato, and cheddar bake is perfect when you are looking for a slightly healthier potato side with plenty of cheesy goodness.


  • 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


  1. Preheat oven to 450°F. Spray three 12-ounce baking dishes (or a 1 quart baking dish) with non-stick spray.
  2. 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.
  3. 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.


  • 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 Information:
Yield: 4 Serving Size: 1 of 4
Amount Per Serving: Calories: 286Total Fat: 17gSaturated Fat: 9gTrans Fat: 1gUnsaturated Fat: 5gCholesterol: 48mgSodium: 600mgCarbohydrates: 21gFiber: 3gSugar: 2gProtein: 14g sometimes provides nutritional information, but these figures should be considered estimates, as they are not calculated by a registered dietitian. Please consult a medical professional for any specific nutrition, diet, or allergy advice.

Did you make this recipe?

Please leave a comment on the blog or share a photo on Instagram

Closeup of baked casserole, with fork, on black cloth.

Disclaimer: I was provided with the products mentioned above but no monetary compensation. Opinions are as always, 100% my own.