Healthy Scalloped Cauliflower Casserole
This post may contain affiliate links. As an Amazon Associate, I earn from qualifying purchases. Please read my disclosure.I love serving this healthy scalloped cauliflower casserole whenever I want something creamy, comforting, and packed with wholesome ingredients. I use fresh cauliflower, raw cashews, and thyme to create a rich casserole that most people have a hard time believing is dairy-free. The combination of velvety sauce and crisp golden topping is enough to keep my boys coming back for a second helping.
Scalloped cauliflower deserves a place at every dinner table, whether it is part of a holiday feast or a simple family meal. Cauliflower has a mild flavor that soaks up creamy sauces while staying hearty enough to compete with classic dishes like vegan scalloped potatoes. Add this cauliflower casserole to the menu for your next hearty dinner.
My family loves rich baked casseroles, and recreating dairy-free versions was a high priority when we made the switch to a vegan lifestyle. I started experimenting with a creamy cashew sauce, and the first time they tried it, they did not even miss the cheese! It was such a huge success that I followed it up with a vegan broccoli casserole, which, much to my surprise, was just as well received despite it containing one of my kids’ least favorite vegetables.
👩🏽🍳 Why I Love This Recipe
Since becoming vegan, I have learned that rich, creamy comfort food does not have to include or even depend on butter, cream, or cheese, and this scalloped cauliflower recipe is proof. As a health coach, I love recipes that swap out potatoes for cauliflower, allowing me to add more fiber, vitamin C, and antioxidants while keeping every serving satisfying. The creamy cashew sauce coats each slice perfectly, and the breadcrumb topping finishes every helping with the perfect amount of crunch.
Making this scalloped cauliflower is surprisingly simple, which is another reason why I love this recipe. As a mom with 3 boys, dishes that make evenings easier are always welcome. I start by blending the creamy sauce while also pulsing the hemp seeds and pine nuts with the breadcrumbs. After slicing the cauliflower, I layer everything into the baking dish, starting with the cauliflower, then adding a layer of crumbs, then the creamy sauce. I finish with a top layer of breadcrumbs and bake until the cauliflower is tender and the topping becomes crispy and golden.
I still remember one of our first Thanksgivings after going completely vegan. I quietly placed this casserole on the table without mentioning that it was dairy-free. Some of my extended family seemed surprised to see my husband and kids dishing up and helping themselves to seconds, and asked if we were back to eating dairy just for the holidays. After informing them that it was 100% plant-based, there was shocked silence followed by a very honest, “Oh! No wonder I don’t feel bloated!” Slip this dish in at your next family dinner and see if anyone notices the difference.
🥘 Ingredients
I keep the ingredient list for scalloped cauliflower simple. These are the everyday staples I use to create a rich plant-based casserole:
Cauliflower: Fresh cauliflower works best since it slices neatly into thick layers that stay intact during baking.
Fresh thyme: These add a delightful savory herb flavor throughout the casserole.
Breadcrumbs: I prefer using panko breadcrumbs for a crispy topping, but regular or gluten-free breadcrumbs work just as well.
Pine nuts: These toast nicely in the oven and add another layer of texture to every serving.
Hemp seeds: I mix hemp seeds into the topping for extra nutrition and a subtle nutty flavor.
Sea salt: A little salt seasons both the sauce and topping, keeping every bite tasty.
Creamy sauce: I use cooked potato, cooked onion, garlic, raw cashews, unsweetened cashew milk, vegetable broth, lemon juice, apple cider vinegar, and sea salt to produce a rich, flavorful, and creamy sauce that coats the cauliflower as it bakes.
🔪 How To Make
I prepare each part of this scalloped cauliflower recipe separately before layering everything together. This is the process I follow to keep assembly simple:
Blend the sauce: I add my cooked onion and potato to a blender along with the cashews, garlic, cashew milk, vegetable broth, lemon juice, apple cider vinegar, and salt. Then I blend everything until completely smooth.
Assemble: While the sauce blends, I pulse together the breadcrumbs, pine nuts, hemp seeds, and salt. Then I layer my sliced cauliflower pieces in the casserole dish and add a light coating of breadcrumbs. I pour over the sauce and top with the remaining breadcrumbs.
Bake and serve: I bake the casserole in a 350F preheated oven for 35-40 minutes until the cauliflower is tender and the topping is golden brown. I allow it to rest for a few minutes before serving.
💭 Expert Tips
My #1 Secret Tip for this scalloped cauliflower recipe is to leave the casserole untouched for at least 10 minutes after it comes out of the oven. The sauce continues to thicken as it cools slightly, making each serving much easier to scoop while keeping the creamy layers intact.
Other Tips To Keep In Mind:
- Slice carefully: I keep my cauliflower slices close to 1/2 inch thick. Thin slices become too soft, and thicker slices need more time to cook.
- Blend longer: Even when the sauce looks smooth, I let my blender run for another minute. That extra blending creates a silky sauce without any bits of cashew.
- Toast topping: If I want an extra crispy finish, I switch the oven to broil for the last 1-2 minutes. I stay nearby to make sure the breadcrumbs do not burn.
- Season sauce: Before pouring the sauce over the cauliflower, I always taste it and adjust the salt if needed. The cauliflower absorbs seasoning while it bakes, so a well-seasoned sauce makes a big difference.
- Use fresh herbs: Fresh thyme adds a livelier flavor than dried thyme, which can also have a more brittle texture. If dried thyme is all you have, use slightly less than recommended, and rub it between your palms before adding to the dish.
📖 Variations
I make Healthy Scalloped Cauliflower Casserole regularly, and sometimes I adjust the recipe slightly to keep it interesting. These are 3 variations that rarely have leftovers when I make them:
Mushroom bake: I saute 8 ounces of sliced cremini mushrooms and layer them between the cauliflower slices before baking. My husband has even asked me to make individual portions of this version so he can have it for lunch.
Cheesy finish: I sprinkle 1/2 cup of shredded vegan mozzarella over the breadcrumbs during the last 10 minutes of baking. No surprise here, but my boys love this variation the most. Anything with gooey golden cheese is a win for them. You could also mix some vegan Parmesan cheese into the breadcrumbs.
Extra herby: In addition to the thyme, I stir in 2 tablespoons of chopped fresh parsley and 1 tablespoon of chopped chives into the breadcrumb mixture before baking. I love making this for spring dinners, especially when the herbs in my garden have sprouted.
🍽 Serving Suggestions
If you are planning on making scalloped cauliflower for your next dinner, I recommend serving it with an equally crispy protein like vegan schnitzel. Be sure to include a colorful side like roasted butternut squash and some healthy creamed spinach.
As I mentioned, this recipe is a regular at our big Thanksgiving family dinners. Last year, I served it with other traditional sides like roasted green beans and potatoes with a vegan turkey roast and vegan onion gravy. And what would Thanksgiving dinner be without vegan cornbread to soak up all the delicious sauces and flavors?
🧊 Storing And ♨️ Reheating
Refrigeration: Once the casserole has cooled completely, I transfer it to an airtight container or cover the baking dish tightly. It keeps well in the fridge for up to 5 days.
Freezing: I freeze individual portions in freezer-safe containers for up to 2 months.
Reheating: If frozen, I thaw the portions in the refrigerator overnight. Then I warm the casserole in a 350F oven until heated through. If the sauce seems a little thick after chilling, I stir in a splash of plant-based milk before reheating.
❓Recipe FAQs
How can I keep the cauliflower slices from falling apart?
For me, the key is slicing the cauliflower through the center of the head so each piece keeps part of the stem attached. Those little sections act like a natural support structure, making the layers much easier to assemble and serve after baking.
Why is my cashew sauce grainy instead of smooth?
A grainy sauce usually means the cashews were not blended for long enough, or they were a little too firm for the blender. If I am not using a high-powered blender, I soak the cashews in hot water for at least 30 minutes before blending.
What has caused my scalloped cauliflower to turn out watery?
Cauliflower naturally releases moisture while it bakes, especially if it has been washed right before cooking or if frozen cauliflower florets were used. I always pat the slices dry with a clean kitchen towel before assembling, and I prefer fresh cauliflower whenever possible. If you are using frozen cauliflower, I recommend reducing the amount of liquid in the sauce slightly. It is also important to let the casserole rest before serving, as this gives the sauce a chance to thicken.
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Healthy Scalloped Cauliflower Casserole
I love serving this healthy scalloped cauliflower casserole whenever I want something creamy, comforting, and packed with wholesome ingredients. I use fresh cauliflower, raw cashews, and thyme to create a rich casserole that most people have a hard time believing is dairy-free. The combination of velvety sauce and crisp golden topping is enough to keep my boys coming back for a second helping.
Servings: 8
Calories: 182kcal
Ingredients
- 1 head cauliflower
- 1 tablespoon fresh thyme
- 6 tablespoons breadcrumbs , gluten-free if needed (see note)
- 3 tablespoons pine nuts
- 3 tablespoons hemp seeds
- ½ teaspoon sea salt
Sauce:
- 1 cup cooked potato , peel before cooking (about 1 medium potato)
- ¼ onion , medium (cook with potato)
- 2 cloves garlic
- ¾ cup raw cashews , see note
- ½ cup unsweetened cashew milk , almond works too (I use the Silk Brand)
- 1 cup veggie broth , low sodium if needed
- 1 tablespoon lemon juice
- 1 teaspoon apple cider vinegar
- 1 teaspoon sea salt
Equipment
Instructions
- Preheat oven to 350°F/180°C.
- Make sauce. Cook potato and onion by boiling until soft. Place all sauce ingredients into a high speed blender and blend until smooth.
- Make breadcrumb parmesan topping by placing breadcrumbs, pine nuts, hemp seeds, and salt into a food processor and pulse until crumbly. Take half of the breadcrumb parmesan mixture and set aside for the topping.
- Wash the head of cauliflower and slice it into thick slices, about ½ inch thick. Make sure to get out most of the thick stem.
- Line the cauliflower pieces up on a tray and sprinkle with the other half of the breadcrumb parmesan mix, making sure to coat both sides of each piece. It doesn’t have to be fully coated, just looking for some added texture to the cauliflower. If your cauliflower is dry then you can always brush with veggie broth or oil to help get the mixture to stick.
- Layer the slices into a square baking dish (I used 9 x 9 inches).
- Pour the sauce over the top until it fully covers the cauliflower. You will use all but about ½ – ¾ cup of the sauce. You can save the extra for another time, it’s great with pasta!
- Sprinkle the other half of the breadcrumb parmesan mix over the top. Then sprinkle with fresh thyme leaves.
- Bake at 350°F/180°C for 35-40 minutes. Check at 35 minutes by piercing it with a fork to see how cooked the cauliflower is. I like it more on the al dente side, but you can continue to cook until your preferred texture is reached. Keep in mind it will cook a little more as it is cooling.
- Make sure to allow the dish to cool before serving to allow it to set a bit. Enjoy!
Notes
- My #1 Secret Tip for this scalloped cauliflower recipe is to leave the casserole untouched for at least 10 minutes after it comes out of the oven. The sauce continues to thicken as it cools slightly, making each serving much easier to scoop while keeping the creamy layers intact.
- Slice carefully: I keep my cauliflower slices close to 1/2 inch thick. Thin slices become too soft, and thicker slices need more time to cook.
- Blend longer: Even when the sauce looks smooth, I let my blender run for another minute. That extra blending creates a silky sauce without any bits of cashew.
- Toast topping: If I want an extra crispy finish, I switch the oven to broil for the last 1-2 minutes. I stay nearby to make sure the breadcrumbs do not burn.
- Season sauce: Before pouring the sauce over the cauliflower, I always taste it and adjust the salt if needed. The cauliflower absorbs seasoning while it bakes, so a well-seasoned sauce makes a big difference.
- Use fresh herbs: Fresh thyme adds a livelier flavor than dried thyme, which can also have a more brittle texture. If dried thyme is all you have, use slightly less than recommended, and rub it between your palms before adding to the dish.
Nutrition
Calories: 182kcal | Carbohydrates: 16g | Protein: 6g | Fat: 10g | Saturated Fat: 1g | Sodium: 471mg | Potassium: 195mg | Fiber: 1g | Sugar: 1g | Vitamin A: 70IU | Vitamin C: 9.9mg | Calcium: 20mg | Iron: 2.1mg
