30 Healthy Whole30 Casseroles (+ Easy Menu)

The thought of 30 days without any grains, sugar, alcohol, or dairy may sound scary, but thanks to these Whole30 casseroles, it’s never been easier!

The key is to focus on the foods you can have and make the most out of them. 

If you think about it, there are tons of scrumptious dishes you can whip up with meat, fruits, veggies, and healthy fats!

But if you’re unsure of where to start, I’ve got you covered.

These incredible Whole30 casseroles are unbelievably rich, wonderfully savory, and oh-so-delicious!

They’re so good, you might just forget you’re on a diet.

30 Best Whole30 Casserole Recipes We Adore

1. Whole30 Chicken Broccoli Casserole

Let’s start with a creamy casserole that’ll change how you look at broccoli.

A mix of shredded chicken, sautéed mushrooms, and broccoli is bathed in a creamy Alfredo sauce and then baked to perfection.

I know what you’re thinking – Alfredo is loaded with dairy, so how can this dish be Whole30-compliant?

The answer? You’ll make it vegan.

You’re welcome.

2. Whole30 Buffalo Chicken Casserole

Spaghetti squash, shredded chicken, and veggies flavored with a lip-smacking buffalo sauce – need I say more?

Bound together in fluffy eggs, this dish is like a quiche-style bake you’ll crave for days.

I was initially hesitant about veggie noodles in a casserole. But thankfully, my mind was blown when I tried this dish.

Here’s one more thing you’ll love: despite being carb-free, it’s so hearty it’ll easily keep you full until your next meal.

3. Beef Taco Casserole

This casserole is loaded with seasoned ground beef, onions, bell peppers, kale, cherry tomatoes, and salsa.

It’s everything you love about beef tacos, all rolled into one fabulous dinner.

For an extra surprise, it also features sweet potato noodles. This gives the dish a sweet contrast and makes it extra filling.

4. Whole30 Breakfast Casserole with Sausage, Eggs, Spinach, and Mushrooms

Looking for a hearty and delicious casserole to fuel you for the day? Look no further than this terrific Whole30 breakfast bake.

Bursting with breakfast sausage, tomatoes, spinach, and mushrooms, it’s all bound with fluffy, protein-rich eggs. 

It’s colorful, filling, and wonderfully meaty. Just what you need to power through until lunch!

5. Tex-Mex Beef and Rice Casserole

You can’t have rice on a Whole30 diet…but no one said anything about cauliflower rice!

Ground cauliflower florets mimic the texture of rice, helping you satisfy that craving like nothing else can.

Add some ground beef, bell peppers, and salsa, and this Mexican-inspired casserole will make your day.

It’s rich and savory with a little bit of a kick. Plus, its festive colors are such a treat.

6. Salisbury Steak Casserole

Perfectly seasoned ground beef, hash browns, and veggies swim in a thick mushroom gravy. This is pure comfort food – done the Whole30 way.

Packed with carbs, protein, vegetables, and fat, this casserole has all the nourishment your body needs.

It’s a complete meal in one, but more importantly, it’s freaking delicious.

7. Sweet Potato Breakfast Casserole (Paleo/Whole30)

This next casserole is jam-packed with sausage, onions, sweet potatoes, and bell peppers. 

I love how it’s a mix of savory and sweet with a little extra oomph from the spice blend.

What a wonderful feast of flavors!

I know this round-up is all about healthy eating, but this is one paleo casserole I’ll have trouble just eating one slice of.

8. Whole30 Hash Brown And Sausage Breakfast Casserole

Not a cauliflower lover? No problem!

Shredded potatoes are the next best thing – especially when they’re in this sausages and egg breakfast bake.

Add this to your 30-day meal menu, and you’ll be fine without rice.

9. Beef and Broccoli Skillet Casserole

Ground beef seasoned with spices and cooked in bacon fat is already a pretty impressive dish.

But it doesn’t end there. You’ll also throw in some crunchy broccoli florets and a creamy cashew sauce your taste buds will never forget.

This casserole is so scrumptious, even the pickiest eaters will ask for seconds.

10. Buffalo Chicken Spaghetti Squash Casserole

If you’ve never thought of serving buffalo wings with spaghetti, get ready to fall in love.

This is one glorious casserole.

Granted, it uses spaghetti squash to make it Whole30-compliant, but trust me, this dish is a winner.

Start with rotisserie chicken if you want to speed things up.

Shred and mix it with the cooked spaghetti squash and a dreamy sauce of Frank’s Red Hot, eggs, olive oil, and spices. Yum!

11. Chicken & Bacon Alfredo Casserole

Brimming with chicken, hash browns, broccoli, and bacon in a creamy Alfredo sauce, this is what casserole dreams are made of.

You’ll be amazed at how flavorful this dish is, even though you only need seven ingredients.

Plus, it’s not only Whole30-compliant but also paleo, dairy-free, and gluten-free. So this one’s for the whole family to enjoy. 

12. Big Mac Casserole

Dreaming about a giant, juicy Big Mac? Sorry, pal, you can’t have it. 

What you can have, though, is this tasty Big Mac casserole. 

It’s jam-packed with ground beef, onions, bell peppers, potatoes, dill pickles, and a creamy homemade secret sauce.

There’s no bread in it, but it’s the next best thing. And truthfully, it’s not half bad!

13. Whole30 Shepherd’s Pie

Fancy an English dinner? 

This shepherd’s pie features ground beef, snap peas, and carrots underneath a bed of creamy cauliflower and potato.

Savory at the bottom, creamy on top, and delicious in every bite, this is everything you could ever ask for in comfort food.

14. Creamy Garlic Spaghetti Squash Casserole

This light spaghetti casserole is packed with Italian sausage, mushrooms, broccoli, and a ridiculously creamy garlic sauce.

Many people think spaghetti squash isn’t as satisfying as real spaghetti. But when you’re restricting carbs, it’s a fantastic alternative.

In truth, I prefer it! It has a similar texture and a slew of nutrients to boot.

15. Paleo Chicken Broccoli “Rice” Casserole

Overflowing with color and brimming with goodness, this casserole features broccoli, cauliflower rice, bacon, and chicken.

And thanks to coconut milk and nutritional yeast, there’s also a cheesy sauce you’ll swoon over.

16. Bacon Cheeseburger Casserole

If its name doesn’t make your mouth water, wait until you hear what’s in this dish.

Between the ground beef, sweet potatoes, bacon, and nutritional yeast, this mind-blowing casserole will make your taste buds jump up for joy.

As long as you have this show-stopping casserole around, it doesn’t matter that you’re not allowed a cheeseburger.

17. Creamy Bacon Ranch Chicken Casserole

Here’s another pasta bake your whole family will enjoy. 

A mix of spaghetti squash, ground chicken, broccoli, and spices tossed in a creamy Ranch dressing, this might just be your new favorite casserole.

It doesn’t matter if you’re on a diet or not. This bake is a must-add to your weekly meal rotation.

18. Sausage Tomato Basil Egg Bake

Creamy and fluffy eggs filled with sausages, tomatoes, basil, and potatoes. This bake may be simple, but it hits all the right notes.

It’s creamy, hearty, meaty, and refreshing all at the same time.

It’s also deliciously rich and savory, but the tomatoes add a subtle sweetness that compliments the flavors nicely.

19. BBQ Chicken Casserole

BBQ chicken in a casserole? You got it!

Also loaded with sausage, this bake is definitely for meat lovers. You’ll love the contrast between the sweet, savory, and smoky flavors.

This casserole is the perfect everyday meal made with basic ingredients you likely already have on hand. 

20. Beef Enchilada Breakfast Bake

This bake is healthy but ridiculously indulgent and is packed with cauliflower rice, ground beef, veggies, and tons of spices.

That said, if you want to up your Whole30 game, you need to serve this with a table full of garnishes.

Black olives, avocado, and dairy-free Ranch dressing should do the trick.

21. Spaghetti Pizza Casserole

Between the spaghetti on the bottom and the pepperoni pizza on top, each bite of this is like an Italian party!

This casserole is mega loaded with scrumptiousness. So much so, you won’t even notice the absence of real pasta and cheese.

Made with spaghetti squash tossed with beef, mushrooms, olives, and marinara, the bottom layer is a standout on its own.

The pepperonis on top are just the frosting on the cake.

22. Beef and Kale Casserole

In this next casserole, the savory flavor of perfectly-seasoned ground beef is highlighted in all its delicious glory.

This humble dish is just ground beef and kale with a creamy sauce on top. Yet, despite its simplicity, it doesn’t fail to deliver.

It’s savory at the bottom and extra rich on top. The combined layers create an outstanding balance of flavors.

23. Whole30 & Paleo Tuna Zoodle Casserole

Zucchini noodles, canned tuna, and mushrooms may seem like an unlikely trio, but after one bite of this, I know you’ll be hooked.

Did I mention the creamy sauce? Made with cashews, bone broth, and lemon juice, it’s rich, silky, and to die for.

24. Whole30 Chorizo Egg Bake

If you haven’t had chorizo yet, let this be the sign to buy some.

Salty, savory, smoky, and mildly sweet, its unique combination of flavors makes it a cut above the rest.

Besides the superb sausage, this bake also contains hash browns, bell peppers, and a dozen scrambled eggs to tie them all together. Delish!

25. Roasted Veggie Breakfast Casserole

Breakfast casserole meets sheet pan dinner in this epic marriage of meals.

A medley of roasted veggies held together by creamy eggs, this casserole is nutritious, delicious, and full of color. 

Roasting the vegetables caramelizes them, giving them an even deeper and sweeter flavor. So don’t skip this step!

26. Paleo Green Bean Casserole

This paleo casserole features green beans, bacon, and crispy-fried onions. What a lovely crispy-crunchy combo!

Covered in rich Whole30 mushroom soup, this bake has a tremendous textural variety your taste buds will enjoy. 

27. Creamy Cashew Potato Casserole

A bed of hash browns is tossed with a creamy cashew cheese sauce and finished with crispy-fried hash browns.

Sign me up!

Potatoes at the bottom and more potatoes on top – this is the ultimate potato lover’s dream! 

While the cream sauce only serves as a support component, it plays a huge part.

It’s thick, luscious, and ensures the casserole stays extra moist and tasty.

28. Cream of Mushroom Paleo Casserole

From the cauliflower rice and mushrooms to the cream sauce on top, this casserole is the epitome of vegetarian comfort foods.

The mushrooms are delightfully meaty and woodsy, and they’ll make you forget all about the lack of meat. 

Together with the rest of the layers, they create a surprisingly addictive bake even avid carnivores will love.

29. Easy Zucchini Casserole

How amazingly scrumptious does this zucchini casserole look? It’s so vibrant and tasty, it’s hard to believe it only uses seven ingredients.

A simple mix of zucchini noodles, Italian sausage, bell peppers, marinara, basil, onion, and garlic, this casserole is a cinch to make.

Once you’ve got all the veggies sliced, the rest comes easy.

30. Jalapeño Tuna Casserole

Traditional tuna casserole is made healthier with spaghetti squash and given some heat with jalapeños.

Sound pretty epic to me!

It’s creamy, dreamy, and everything you want the classic dish to be. The only difference is, you can enjoy it without the guilt.