Whole30 Chicken Broccoli Casserole (paleo, dairy-free)

A must-make Whole30 casserole recipe that’s creamy, cheesy and flavorful – without any cream or cheese! Shredded chicken is mixed with sautéed mushrooms and broccoli, then topped with my Vegan Alfredo Sauce for an easy and healthy weeknight dinner.

Whole30 casserole recipe with shredded chicken, sautéed mushrooms and broccoli, then topped with my Vegan Alfredo Sauce for an easy and healthy weeknight dinner. It's also a dairy-free and paleo casserole recipe.

Whole30 Chicken Broccoli Casserole

While many people seek out Whole30 recipes as part of a January or September Whole30 reset (the months most do the program), I like to remind folks that Whole30 recipes are still delicious every day of the week. They’re just free of gluten, grains, dairy, sugar and legumes. But they’re certainly not lacking in flavor.

In fact, I’d wager to guess most people think this recipe has dairy, because it’s super creamy and cheesy-like. You can thank my Vegan Alfredo Sauce recipe for that (which on it’s own is a reader favorite recipe).

Whole30 Casserole Recipe Video

Want to know how to make this delicious casserole recipe? Watch the quick tutorial video below!

What’s in this Whole30 Casserole Recipe?

If you’re wondering what’s in this Whole30 casserole recipe, ingredient-wise, let me cut to the chase. It includes shredded chicken, sautéed mushrooms and onions, broccoli, herbs and my Vegan Alfredo sauce. It’s a handful of simple ingredients, then it’s baked to perfection.

The end result is a creamy, savory, packed-with-flavor casserole recipe that gets even better the second day (if you happen to have leftovers).

Whole30 casserole recipe with shredded chicken, sautéed mushrooms and broccoli, then topped with my Vegan Alfredo Sauce for an easy and healthy weeknight dinner. It's also a dairy-free and paleo casserole recipe.

Whole30 casserole recipe with shredded chicken, sautéed mushrooms and broccoli, then topped with my Vegan Alfredo Sauce for an easy and healthy weeknight dinner. It's also a dairy-free and paleo casserole recipe.

How to Make this Whole30 Casserole Recipe

Make the Vegan Alfredo Sauce

The most important thing in this recipe is remembering to soak your cashews overnight for the sauce. You could also make the entire Vegan Alfredo Sauce recipe the day before and store it in the fridge until you’re ready. Or you could make it same day. It’s entirely up to you.

Make the Shredded Chicken

Cook the chicken on the stovetop, then transfer the chicken breasts to a stand mixer with a paddle attachment. Turn the stand mixer on low for 15 seconds and you have the easiest shredded chicken ever. If you don’t have a stand mixer you could use two forks to shred. But if you do have a stand mixer, this is one of my favorite kitchen hacks.

Whole30 casserole recipe with shredded chicken, sautéed mushrooms and broccoli, then topped with my Vegan Alfredo Sauce for an easy and healthy weeknight dinner. It's also a dairy-free and paleo casserole recipe.

Whole30 casserole recipe with shredded chicken, sautéed mushrooms and broccoli, then topped with my Vegan Alfredo Sauce for an easy and healthy weeknight dinner. It's also a dairy-free and paleo casserole recipe.

Sauté the Vegetables

Quickly sauté the mushrooms and diced onion, then add the broccoli and sauté a few minutes longer until it’s crisp tender. Super easy.

Assemble the Casserole

Once all of the individual pieces are done, it’s simply a matter of assembly. Add the shredded chicken to the bottom of a casserole dish, then layer on the broccoli and mushrooms. Pour on the Vegan Alfredo Sauce (that’s thinned with a cup of chicken broth) and bake the casserole for 20-25 minutes in a 400F oven.

When the casserole comes out of the oven it’s bubbly, tender, creamy, savory and so delicious you’ll definitely go back for seconds. Enjoy!

Whole30 casserole recipe with shredded chicken, sautéed mushrooms and broccoli, then topped with my Vegan Alfredo Sauce for an easy and healthy weeknight dinner. It's also a dairy-free and paleo casserole recipe.

For More Delicious Whole30 Recipes:

Whole30 casserole recipe with shredded chicken, sautéed mushrooms and broccoli, then topped with my Vegan Alfredo Sauce for an easy and healthy weeknight dinner. It's also a dairy-free and paleo casserole recipe.

Whole30 Chicken Broccoli Casserole (paleo)

4.91 from 70 votes
Prep Time: 20 mins
Cook Time: 25 mins
Total Time: 45 mins
Servings: 6 servings
Author: Lisa Bryan
A must-make Whole30 casserole recipe that creamy, cheesy and flavorful - without any cream or cheese! Shredded chicken is mixed with sautéed mushrooms and broccoli, then topped with my Vegan Alfredo Sauce for an easy and healthy weeknight dinner. Watch the video above to see how quickly it comes together!

Ingredients

  • 4 cups cooked and Shredded Chicken
  • 2 tbsp olive oil
  • 2 heads broccoli, florets removed
  • 10 cremini mushrooms, sliced
  • 1/2 small onion, diced
  • 1 cup chicken broth
  • 1 recipe Vegan Alfredo Sauce
  • salt and pepper, to taste
  • rosemary, for garnish

Instructions 

  • Make the Vegan Alfredo Sauce and set aside. This can also be made the day before and stored in the fridge.
  • Preheat the oven to 400 degrees fahrenheit.
  • Heat the olive oil in a large sauté pan over medium heat. Add the sliced mushrooms and diced onion and stir for 3 minutes. Add the broccoli florets (make sure they're in bite-sized pieces and not too large) and stir for another 3 minutes or until the broccoli is crisp-tender and bright green.
  • Place the shredded chicken in a 9x13-inch casserole dish, covering the bottom. Add the sautéed mushrooms, onions and broccoli in a flat layer on top.
  • Stir the chicken broth into the Vegan Alfredo sauce, then pour on top of the broccoli in the casserole dish. Use a spatula if needed to make sure everything is well coated.
  • Cook the casserole for 20-25 minutes. The sauce should be bubbling and slightly reduced and thickened. Garnish with fresh rosemary if desired and serve immediately.

Lisa's Tips

Nutrition

Calories: 417.1kcal, Carbohydrates: 27.3g, Protein: 42.8g, Fat: 17.4g, Saturated Fat: 3.4g, Cholesterol: 76.9mg, Sodium: 593.9mg, Fiber: 8.3g, Sugar: 7.1g
Course: Main Course
Cuisine: American
Keyword: chicken broccoli casserole, chicken casserole, Whole30 casserole
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222 comments on “Whole30 Chicken Broccoli Casserole (paleo, dairy-free)”

  1. Would this work with frozen broccoli?

  2. This was so good, hard to believe it’s dairy free! I thought I’d miss a carb/starch like rice or noodles, but it wasn’t needed. My husband and I both really loved this recipe and can’t wait to make it again!5 stars

  3. This recipe is amazing, I have now made it several  times and continue to do so! 5 stars

  4. Just made this tonight, with the alfredo sauce. First time I’ve made them both. SO GOOD! Even my husband, who is not a fan of broccoli, reported after his second helping (also unusual) – “I’ve never eaten so much broccoli in my life.”

    Meaning it was so good, even the broccoli was delicious!

    This will be a regular in our menu rotation :)5 stars

  5. Oh my goodness! Made this exactly as written and it was AMAZING!5 stars

  6. Made this yum yum and my husband who loves to eat very unhealthy was fooled and went for seconds.🥸5 stars

  7. This was delicious! I added rice and mixed all the ingredients together in the casserole dish before I baked it. I also shredded the chicken in the kitchen aid mixer and OMG, what an amazing hack! Thank you!5 stars

  8. This was amazing! Highly recommend! 5 stars

  9. Hi there I had to cook this recipe for an assessment and was wondering how this dish is a healthy recipe 

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