30 Healthy Casseroles (Whole30 Casseroles) (2024)

Trying to eat healthier in general or doing a Whole30? Well, you can still have a hearty, cozy casserole and stay on course!

With this round up of 30 healthy casseroles you have plenty of options for when you have the desire to whip up a big casserole for a cozy family dinner, meal prep or a freezer meal. Who knew Whole30 casseroles could be so delicious and comforting?

30 Healthy Casseroles (Whole30 Casseroles) (1)

DOING A WHOLE 30?Check out our free30-day printable Whole 30 meal plan with shopping lists.

Dinner RecipesOnly

Since there seems to be an abundance of Whole30 breakfast casserole recipes and round-ups already, for this post we decided to include only dinner casserole recipes. These 30 healthy casseroles will help you figure out what to have for dinner when you are craving a cozy meal during your Whole30!

We are certain that you can find just the healthy casserole you are craving in this list.

Here are the 30 Healthy Casseroles


Creamy Garlic Spaghetti Squash Casserole (Paleo, Whole30, GF + Dairy-Free)

4.39 from 536 ratings

This creamy garlic spaghetti squash casserole is so saucy and delicious! It has a creamy, Paleo, Whole30 + Dairy-Free sauce packed with garlicky goodness.

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Healthy Chicken and Broccoli Casserole (Paleo + Whole30)

4.45 from 109 ratings

As part of our weekly meal prep, we love to make a big dinner Sunday, like this Paleo + Whole30 healthy chicken and broccoli casserole and have the leftovers in the fridge the following week. This casserole is a great, Paleo + Whole30 family-friendly and large dinner recipe!

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Healthy Baked Buffalo Chicken Casserole

4.75 from 63 ratings

We made this healthy baked chicken casserole Paleo, Whole30 and Low Carb, and with a simple modification it can also be made Keto. It's perfect for a family meal or meal prep!

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Spaghetti Pizza Casserole (Paleo + Whole30)

4.68 from 43 ratings

This Paleo + Whole30 Spaghetti Pizza Casserole is about to be a new family favorite! It’s perfect for your weekend meal prep, and the whole family will enjoy this hearty and flavorful casserole!

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Oven Baked Creamy Spinach Artichoke Chicken Casserole

4.74 from 42 ratings

This dairy free spinach artichoke chicken casserole is full of creamy goodness in addition to having plenty of veggies baked right in!

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Creamy Chicken Casserole (Paleo, Whole30 + Dairy-Free)

4.70 from 39 ratings

This Paleo + Whole30 Creamy Chicken Casserole is made with spaghetti-squash so it’s grain-free, gluten-free and the creamy, cheese-like sauce is dairy-free!

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Easy Taco Casserole (Paleo, Whole30 + Keto)

4.78 from 22 ratings

This Paleo, Whole30 + Keto easy taco casserole is a great meal prep recipe, and the healthy casserole leftovers are perfect for re-heating for lunches!

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Easy Zucchini Casserole (Paleo, Whole30 + Keto)

4.80 from 15 ratings

This simple and healthy casserole is great for a busy weeknight and for making leftovers.

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BBQ Chicken Casserole (Paleo, GF, Dairy-Free + Refined Sugar-Free)

4.53 from 19 ratings

We love when spaghetti squash is in season, so we can make this Paleo BBQ Chicken Casserole. It’s a cleaner and healthier way to enjoy total comfort food!

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Italian Sausage Casserole (Paleo + Whole30)

4.75 from 16 ratings

With a creamy, smoky sauce that's baked in with all the other savory ingredients, this Italian sausage casserole is a different type of healthy casserole.

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Healthy Ground Pork Dinner Casserole

4.80 from 15 ratings

This healthy casserole recipe roasts ground pork, spiralized zucchini, sweet potatoes, and regular potatoes all together in one dish in the oven for 40-50 minutes. Once the combined ingredients cook through, toss everything in a simple, savory homemade sauce made with coconut aminos, apple cider vinegar and select seasonings, and enjoy! This ground pork and vegetable dinner is Whole30 and Paleo diet friendly.

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Zucchini Chicken Enchilada Casserole fromUnboundWellness

30 Healthy Casseroles (Whole30 Casseroles) (13)

Drunken Zoodle Chicken Casserole fromCotterCrunch

30 Healthy Casseroles (Whole30 Casseroles) (14)

Paleo Buffalo Chicken Casserole fromRealFoodwithJessica

30 Healthy Casseroles (Whole30 Casseroles) (15)

Paleo Shepherd’s Pie fromPaleoRunningMomma

30 Healthy Casseroles (Whole30 Casseroles) (16)

Chicken Broccoli “Rice” Casserole fromPaleoRunningMomma

30 Healthy Casseroles (Whole30 Casseroles) (17)

Layered Taco Casserole fromLivingLovingPaleo

30 Healthy Casseroles (Whole30 Casseroles) (18)

Spaghetti Squash and Meatball Casserole fromDoYouEvenPaleo

30 Healthy Casseroles (Whole30 Casseroles) (19)

Buffalo Ranch Chicken Casserole fromTheWholeCook

30 Healthy Casseroles (Whole30 Casseroles) (20)

Beef and Cauliflower Rice Mexican Casserole fromEveryLastBite

30 Healthy Casseroles (Whole30 Casseroles) (21)

Whole30 Broccoli Casserole fromTheDefinedDish

30 Healthy Casseroles (Whole30 Casseroles) (22)

Creamy Sausage Basil Tomato Spaghetti Squash fromPaleoRunningMomma

30 Healthy Casseroles (Whole30 Casseroles) (23)

Green Bean Casserole fromRealFoodwithJessica

30 Healthy Casseroles (Whole30 Casseroles) (24)

Spaghetti Squash Pizza Casserole fromUnboundWellness

30 Healthy Casseroles (Whole30 Casseroles) (25)

Creamy Sausage and Potato Whole30 Casserole fromWholeKitchenSink

30 Healthy Casseroles (Whole30 Casseroles) (26)

Beef Taco Casserole fromEattheGains

30 Healthy Casseroles (Whole30 Casseroles) (27)

Creamy Chicken Mushroom Casserole fromIHeartUmami

30 Healthy Casseroles (Whole30 Casseroles) (28)

Jalapeño Tuna Casserole fromEveryLastBite

30 Healthy Casseroles (Whole30 Casseroles) (29)

Simple Sausage Casserole fromPaleoLeap

30 Healthy Casseroles (Whole30 Casseroles) (30)

Turkey, Broccoli and Mashed Cauliflower Layered Casserole fromLivingLovingPaleo

30 Healthy Casseroles (Whole30 Casseroles) (31)

Paleo Spaghetti Squash Pastit*io fromFoodbyMars

30 Healthy Casseroles (Whole30 Casseroles) (32)

Bacon Jalapeno Popper Chicken Casserole from Mary’s Whole Life

30 Healthy Casseroles (Whole30 Casseroles) (33)
30 Healthy Casseroles (Whole30 Casseroles) (34)


30 Healthy Casseroles (Whole30 Casseroles) (35)

30 Healthy Casseroles (Whole30 Casseroles) (36)

4.68 from 34 ratings

Get the Recipe:

29 Whole30 Casseroles, Plus our Spaghetti Pizza Casserole

Prep: 5 minutes mins

Cook: 1 hour hr 25 minutes mins

Total: 1 hour hr 30 minutes mins

Servings: 8

This Whole30 Spaghetti Pizza Casserole has all the makings of a pizza but it's dairy-free and made with real food ingredients. Plus, check out 29 more Whole30 casserole recipe ideas in this post!

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  • 1 medium spaghetti squash
  • 1.5 lbs ground beef, (can sub Italian Sausage)
  • 1 tbsp Italian seasoning, (omit if you are using Italian Sausage)
  • 1 onion, diced
  • 6 cloves garlic, minced
  • 2 cups mushrooms, sliced
  • 10 leaves fresh basil, diced
  • 1 can olives, diced, (15 oz)
  • 1 jar spaghetti sauce, (25 oz)
  • 2 eggs, (optional, if you omit the casserole just won’t “set” much like a traditional casserole)
  • 5 oz pepperoni slices

Optional toppings:

  • Chopped red onion
  • Chopped basil


  • Preheat oven to 425° Fahrenheit.

  • Slice the spaghetti squash lengthwise and scoop out the seeds. Place the two halves face-down on a baking dish and place in the oven to bake for 25 minutes, or until the squash shreds easily but is not mushy.

  • While the squash is cooking, chop all of your other ingredients as noted and set aside.

  • Heat a large skillet over medium heat. Once hot, and add in the ground beef and onion. Cook, stirring occasionally, until the beef is browned. Season with Italian seasoning and mix. Taste and season with salt and pepper as desired and remove from heat.

  • Once cooked, remove the squash from the oven and lower the oven temperature down to 350° Fahrenheit. Allow the squash to cool for handling, about 5 minutes.

  • With a fork, scrape out the spaghetti squash “noodles” into a large bowl.

  • Add the cooked beef, garlic, mushrooms, basil, olives, spaghetti sauce and eggs (optional) to the bowl. Stir everything around to mix it well.

  • Dump 1/2 of the spaghetti squash mixture into a 9×13 casserole dish. Spread it around to make an even layer on the bottom of the dish. Top with a layer of 1/2 of the pepperoni.

  • Add on the other half of the spaghetti squash mixture and spread it around again to create an even layer. Top with a layer of the remaining pepperoni.

  • Place in the oven to cook for 30 minutes.

  • Remove and top with optional toppings as desired. Allow to cool for a few minutes, slice into pieces and serve.

Last Step:

Please leave a star rating and comment to let us know how you liked this recipe! Your ratings and reviews help our business grow, so we can continue to provide free healthy and delicious recipes for you.

Course: Main Course

Author: Justin Winn

Cuisine: American

Did you make this recipe?Tag @realsimplegood with hashtag #realsimplegood on Instagram. We love to see what you make!

30 Healthy Casseroles (Whole30 Casseroles) (37)


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posted by Justin Winn on February 24, 2019 (last updated Nov 17, 2022)

4 comments Leave a comment »

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4 comments on “30 Healthy Whole30 Casseroles”

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  1. Verna Reply

    Phew! This casserole is everything! Hearty, flavorful and delicious! I added diced yellow pepper for even more color. My husband and 14yo son loved it as well.

    • Erica Winn Reply

      Hooray! So happy you found something for everyone to love! Thanks for coming back to let us know! We appreciate it. 🙂

  2. Chelsea Reply

    Casseroles are ALWAYS a good idea! Thanks for including one of my recipes! <3

    • J+E | Real Simple Good Reply

      We agree and you’re very welcome 🙂

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