21 Healthy Casseroles

A full collection of healthy casseroles that are easy to prepare and perfect for families or big groups. Many are freezer-friendly and can be made ahead of time!

I’m all about quick and easy meals lately. More often than not I’ve been leaning on slow cooker meals and/or casseroles! Even though we have a small family, I love making large batch meals like casseroles so that we have plenty of leftovers for the week.

What Makes a Casserole Healthy?

Casseroles tend to get a bad rap because they’re commonly loaded with things like canned soup, cheese and/or cream. But casseroles can totally be elevated using better ingredients and still taste delicious.

My philosophy when it comes to building healthy casseroles is the same as every other meal. I like to have a balance of protein, healthy fats, fiber and carbs. This is usually pretty easy because most casseroles involve some sort of grain, protein and veggies. Of course, if you are missing one of these macronutrients in the casserole, you can always serve with a side dish to balance out the meal!

I’m all about taking casseroles I grew up loving and making them healthier. To do this, I usually try to swap any refined grains for whole grains, use fresh or frozen items instead of canned foods, sneak in more veggies (even if it’s just a handful of spinach) and lighten up the amount of cheese needed. These are easy adjustments and trust me, everyone will still love these healthier versions.

How to Meal Prep Casseroles

There are two different ways you can meal prep casseroles:

  1. Assemble but don’t bake. Prep all of the ingredients and follow the directions up until you are supposed to bake. Cover and refrigerate or freeze until you’re ready to bake. If you freeze it, make sure you thaw it in the refrigerator first.
  2. The other option is to follow the recipe all the way through baking! Let the casserole cool completely before covering and storing in the refrigerator or freezer.

Healthy Breakfast Casseroles

Healthy Breakfast Casserole

4.35 from 29 votes
This healthy breakfast casserole is flavorful, cheesy and packed with veggies. It's the perfect make ahead dish for brunch and great for serving a crowd!
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A healthy breakfast casserole in a baking dish.

Sausage Egg Casserole

4.06 from 193 votes
This veggie-packed sausage egg casserole is the perfect healthy dish to serve a crowd. It’s dairy-free and gluten-free, but still packs tons of flavor!
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Casserole dish with an egg, veggie, and chicken sausage bake. A wood serving spoon is to the side.

French Toast Bake

3.94 from 15 votes
Make French Toast for a crowd with this easy Overnight French Toast Bake that’s dairy-free! To lighten things up a bit this recipe uses a mixture of eggs and egg whites, almond milk and maple syrup for sweetness.
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Top of a french toast bake, topped with brown sugar, cranberries, and almonds.

Easy Baked Oatmeal

4.26 from 497 votes
Easy baked oatmeal + all the best baked oatmeal recipes in one place, with a flavor for every season and occasion! Baked oatmeal is perfect for meal prep and so delicious.
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Baked oatmeal in a white baking dish with bananas and pecans.

Healthy Dinner Casseroles

Sweet Potato Black Bean Enchilada Bake

4.83 from 29 votes
Layered with tortillas, sweet potatoes, black beans, cheese and a homemade enchilada sauce. Vegetarian, gluten-free and absolutely delicious!
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Slice of sweet potato black bean enchilada bake layered with tortillas, sweet potatoes, black beans, cheese and a homemade enchilada sauce with slices of avocado on the side. Remaining enchilada bake in baking dish behind.

Spaghetti Squash Taco Bake

4.35 from 158 votes
This spaghetti squash taco bake combines low-carb spaghetti squash with ground turkey, taco seasoning, salsa and cheese for a delicious, healthy and easy dinner.
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Bowl of cheesy low carb spaghetti squash taco bake topped with veggies.

Confetti Chicken Casserole

3.80 from 87 votes
Transform chicken, kale and corn into a delicious chicken casserole that comes together quickly if you prep a few key ingredients ahead of time!
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Chicken casserole in a casserole dish topped with cheese, bacon, and green onions. Spoon and onions next to baking dish.

Turkey Eggplant Casserole

4.29 from 88 votes
Comfort food made healthy, this cheesy eggplant casserole layers eggplant with protein-rich turkey and mozzarella. The best part? It bakes up in 30 minutes!
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Baking dish of a cheesy eggplant casserole topped with cheese and fresh parsley.

Cheesy Broccoli Quinoa Casserole

4.16 from 63 votes
Cheesy broccoli quinoa casserole made healthy! This version has protein-packed quinoa, fresh broccoli florets and a homemade sauce instead of canned soup.
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Broccoli quinoa casserole with cheddar cheese in a baking dish.

Stuffed Pepper Casserole

3.87 from 170 votes
This stuffed pepper casserole has all the delicious flavors of traditional stuffed peppers but is made in one pot for an easy weeknight meal. Loaded with ground turkey, brown rice, veggies, spices and topped with cheese. It's hearty, delicious and packed with flavor.
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An overhead photo of stuffed pepper casserole served on a round, white plate. A fork is resting on the plate.

Baked Eggplant Parmesan

4.62 from 146 votes
Make a healthy baked eggplant parmesan with crispy almond flour-coated eggplant slices that are baked – no frying or bread crumbs needed!
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A baking dish with eggplant parmesan and cut into pieces.

Spaghetti Squash Tuna Casserole

4.05 from 24 votes
A healthy spin on a comfort food classic, these spaghetti squash tuna noodle casserole boats are filled with loads of creamy goodness and ample protein. Gluten-free, dairy-free, low-carb and paleo!
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Two spaghetti squash tuna casserole boats on white plates.

Slow Cooker Mexican Quinoa Casserole

4.12 from 68 votes
A vegetarian Mexican quinoa casserole made entirely in the slow cooker. Packed with sweet potatoes, black beans and taco seasoning, this is sure to be a family favorite! Vegetarian and gluten-free.
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Vegetarian Mexican quinoa casserole in a slow cooker topped with melted cheese, sliced jalapeno, green onions and cilantro.

Skinny Tofu Zucchini Lasagna

4.89 from 9 votes
Low carb, healthy lasagna made with zucchini noodles and tofu. This vegetarian main is packed with protein and loaded with Italian flavor!
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Slice of zucchini noodle tofu lasagna on a plate with salad.

Turkey Cauliflower Baked Ziti

4.39 from 49 votes
This turkey cauliflower baked ziti uses cooked cauliflower instead of pasta noodles so it’s low-carb and gluten-free while still being cheesy and delicious. 
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Cauliflower baked ziti topped with parmesan before its cooked.

Mayan Harvest Bake

4 from 10 votes
A homemade version of Kashi’s Mayan Harvest Bake. This vegan casserole has layers of polenta and quinoa with roasted sweet potatoes, plantains, kale and black beans all in a rich chili-tomato sauce.
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Mayan harvest bake on a white plate with layers of polenta and quinoa with roasted sweet potatoes, plantains. Topped with avocado.

Classic Sweet Potato Casserole

4.45 from 9 votes
Easy classic sweet potato casserole made with only 6 ingredients. Topped with mini marshmallows and perfectly sweet, this recipe is sure to be a family favorite.
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Sweet potato casserole topped with marshmallows.

Healthy Sweet Potato Casserole

4.16 from 125 votes
This healthy sweet potato casserole is lower in sugar, dairy-free and made with a crunchy oatmeal pecan topping. Vegan + gluten-free.
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A serving spoon resting in a white baking dish containing sweet potato casserole.

Healthy Green Bean Casserole

4.42 from 41 votes
Healthy green bean casserole made with a creamy mushroom cashew sauce and homemade crispy baked onions.
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Healthy green bean casserole in a baking dish.

Quinoa Stuffing

4.70 from 10 votes
This quinoa stuffing is loaded with butternut squash, mushrooms and herbs. It’s a healthy, savory gluten-free side dish to add to your Thanksgiving table.
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Bowl and wooden spoon with quinoa stuffing made with cranberries and butternut squash.

Healthy Tuna Noodle Casserole

5 from 5 votes
A healthier version of the comfort food classic, this tuna noodle casserole combines protein-packed chickpea rotini, albacore tuna, veggies and a creamy sauce. It comes together quickly and makes for a great comforting fall/winter dinner.
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A serving of healthy tuna noodle casserole on a plate.

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Mexican Quinoa Casserole (& More Healthy Casseroles)

5 from 15 votes
This Mexican quinoa casserole is a healthy casserole the whole family will love. It's packed with veggies, black beans and lots of cheesy goodness.
Plate with a cheesy Mexican quinoa casserole topped with jalapenos slices, avocado, and cilantro.
Prep Time 10 minutes
Cook Time 1 hour
Total Time 1 hour 10 minutes
Servings 6


  • 1 cup water
  • ½ cup dry quinoa
  • 3 cups sweet potato, diced
  • 1 medium red bell pepper, diced
  • ½ small yellow onion, diced
  • 1 Tablespoon + 1 teaspoon McCormick Gluten-Free Taco Seasoning
  • 1 14 oz can of black soybeans or black beans, rinsed and drained
  • ¼ cup sliced green onion
  • ¼ cup cilantro, chopped
  • 1 ½ cups prepared salsa, mild, medium or hot
  • 2 cups shredded Mexican cheese blend
  • 2% Greek yogurt, avocado, extra green onion and cilantro (for topping)


  • Bring the water and quinoa to a boil in a saucepan. Reduce to a simmer, cover and cook for 15 minutes. Remove from heat and let the covered saucepan cool for 4-5 minutes. Remove the lid and fluff with a fork. Set aside.
  • Preheat the oven to 350° F. Grease a 9″x 13″ dish and spread the sweet potato, bell pepper, and onion in the bottom. Sprinkle with 1 teaspoon of the taco seasoning.
  • In a bowl combine the beans, cooked quinoa, green onion, cilantro and 1 tablespoon of taco seasoning; mix well.
  • Place the bean and quinoa mixture over the veggies in the baking dish. Spread salsa on top of the quinoa mixture. Top with cheese.
  • Cover with aluminum foil and bake for 40 minutes. Removed cover and bake for another 20 minutes or until cheese has melted, the sweet potatoes are cooked and everything is hot throughout.
  • Serve immediately topped with greek yogurt, avocado slices, green onion and cilantro if desired.


Serving: 1/6 of recipe Calories: 348kcal Carbohydrates: 34g Protein: 18g Fat: 15g Fiber: 7g Sugar: 5g
Course: Lunch/Dinner
Cuisine: Mexican
Keyword: healthy casserole


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Recipe Rating

    1. Janet
      November 15, 2021 AT 8:30 pm

      Can you say leftovers? I love casseroles and the ease of packing lunch the next day. I’m looking forward to trying some of these out.

      1. Brittany Mullins
        January 17, 2022 AT 10:53 pm

        Yes!! Can’t wait to hear what you think!!

Parchment paper lined with protein balls.


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