As I pulled that bubbling dish out of the oven, the aroma of melted cheese enveloped the kitchen, and my mouth watered in anticipation. This Creamy Keto Spinach Broccoli Cheese Casserole is my secret weapon for turning everyday dinners into comforting feasts. Not only is it a stunningly easy recipe that keeps your carb count low, but it also packs a punch of nutrition with vibrant spinach and hearty broccoli. Whether you’re on a keto journey or just looking for a satisfying side dish that pleases both guests and family, this casserole is a versatile addition to any meal. Feeling adventurous? You can easily customize it by adding chicken or experimenting with different cheeses! Ready to dive into a creamy delight that doesn’t compromise your health goals? Let’s get cooking!

Why is this casserole a must-try?
Creamy Comfort: This delicious casserole combines rich cheeses and wholesome vegetables, creating a dish that satisfies both cravings and health goals.
Keto-Friendly: With only 2.6g net carbs per serving, it’s perfect for those on a keto diet without sacrificing flavor.
Simple Prep: The steps are quick and uncomplicated, making this a fantastic weeknight option that doesn’t keep you in the kitchen for long.
Versatile Options: Customize your dish by adding cooked chicken or experimenting with various cheeses to suit your taste—try a Chicken Spaghetti Casserole for another hearty option!
Crowd-Pleasing Delight: Whether it’s a family dinner or a holiday gathering, this casserole is guaranteed to be a hit with guests, pairing beautifully with grilled meats or even a fresh salad.
Spinach Broccoli Cheese Casserole Ingredients
For the Base
- Garlic – Adds aromatic flavor; garlic powder can be a quick substitute.
- Frozen Broccoli Florets (12 oz) – This provides the essential veggie foundation; fresh broccoli works too, just cook for about 15 minutes.
- Fresh Spinach (2 cups) – Boosts nutrition and texture; fresh is best to avoid excess shrinkage.
For the Creaminess
- Mayonnaise (2 tbsp) – Acts as a binder and adds creaminess; consider Greek yogurt for a lower-calorie swap.
- Cream Cheese (2 oz) – Creates a luscious, creamy texture; low-fat cream cheese is a lighter option.
- Sharp Cheddar Cheese (½ cup) – Gives a potent cheese flavor; feel free to substitute with your favorite cheese like Monterey Jack.
- Mozzarella Cheese (¾ cup) – Offers delightful melting quality and a golden crust; other meltable cheeses can work here as well.
For the Flavor
- Onion Powder (½ tsp) – Enhances the overall taste; fresh shallots can be a lovely alternative.
This Spinach Broccoli Cheese Casserole brings together the best of comfort and nutrition, making it a go-to dish for health-conscious food lovers!
Step‑by‑Step Instructions for Creamy Keto Spinach Broccoli Cheese Casserole
Step 1: Preheat the Oven
Begin your cooking journey by preheating your oven to 350°F (175°C). This temperature will ensure your casserole bakes evenly, creating a beautifully golden top. While the oven heats, gather your ingredients and baking dish to streamline the next steps.
Step 2: Prepare the Broccoli
Cook your frozen broccoli florets according to the package instructions until fully heated, approximately 5-7 minutes in boiling water. If using fresh broccoli, chop it into bite-sized pieces and microwave it with a splash of water for about 5 minutes until tender. This vegetable will provide a vibrant base for your creamy keto spinach broccoli cheese casserole.
Step 3: Mix the Base
In a spacious mixing bowl, combine the hot, drained broccoli, 2 ounces of cream cheese, and 2 tablespoons of mayonnaise. Add 2 cups of fresh spinach along with minced garlic and ½ teaspoon of onion powder. Stir vigorously until the mixture is uniform and creamy, as the heat from the broccoli will help melt the cream cheese.
Step 4: Transfer to Baking Dish
Spoon the beautifully mixed spinach broccoli concoction into a lightly greased baking dish, ensuring it’s spread evenly. This will allow for optimal cooking and a well-baked casserole. Now, prepare for the next layer by garnishing the top with ¾ cup of shredded mozzarella cheese, which will melt and create a delightful crust.
Step 5: Bake the Casserole
Place your prepared spinach broccoli cheese casserole in the preheated oven and bake for 30-35 minutes. Keep an eye on it; you want the cheese to be bubbly and the top to turn a lovely golden brown. This step is crucial for creating that comforting appeal that draws everyone to the table.
Step 6: Cool and Serve
Once baked to perfection, carefully remove the casserole from the oven and let it cool for about 5 minutes. This resting period allows the flavors to meld beautifully. Once slightly cooled, serve warm, and relish the comforting blend of creamy cheeses and hearty vegetables that make this casserole a family favorite.

What to Serve with Creamy Keto Spinach Broccoli Cheese Casserole
Looking to create an unforgettable meal that dances on the palate? Let’s pair your casserole with fantastic side dishes and drinks that truly elevate your dining experience.
-
Grilled Chicken: Juicy grilled chicken adds a satisfying protein element that complements the creamy casserole beautifully. It’s a delightful contrast to the cheesy richness.
-
Cauliflower Rice: Light and fluffy, cauliflower rice provides a fantastic low-carb base while absorbing delicious flavors from your main dish.
-
Garlic Bread: A crunchy, aromatic garlic bread offers a textural balance to the creamy casserole. Pair with a side of marinara for dipping to bring out exciting flavors.
-
Arugula Salad: This peppery, fresh salad introduces a vibrant crunch that lightens the meal. Toss it with lemon vinaigrette for a refreshing touch.
-
Roasted Veggies: Seasonal roasted vegetables offer rich, caramelized flavors that enhance the dish’s veggies. Try a mix of bell peppers, zucchini, and carrots!
-
Sparkling Water with Lemon: A refreshing beverage like sparkling water with a squeeze of lemon cleanses the palate, enhancing the foods’ flavors during the meal.
-
Chocolate Mousse: For dessert, this rich, creamy indulgence pairs beautifully with the savory casserole, allowing for a delightful sweet ending.
With these stunning companions, your table will not only look appealing but will also deliver a memorable dining experience bursting with flavor and texture!
Expert Tips for Spinach Broccoli Cheese Casserole
Mix it Quickly: Ensure to combine the hot broccoli with the cheese promptly to enable perfect melting. This will create that creamy texture we all love!
Taste Test: Adjust salt and pepper to personal preference. Remember, some cheeses can be quite salty, so taste as you go!
Make Ahead: Prepare the casserole in advance and store it in the fridge. Bake it fresh when you’re ready to serve for a delightful, warm dish!
Don’t Overcook: Keep an eye on the baking time; overcooking can lead to a dry casserole. You want that bubbly, gooey goodness on top!
Be Creative: Feel free to experiment with different cheeses or add in cooked chicken for a heartier meal. Your customization options are endless with this Spinach Broccoli Cheese Casserole!
Storage Tips for Spinach Broccoli Cheese Casserole
Fridge: Store any leftovers in an airtight container for up to 3 days. Allow it to cool completely before sealing to preserve texture and flavor.
Freezer: For longer storage, freeze the casserole before baking. Wrap tightly in plastic wrap and foil, and it can last up to 3 months. Thaw in the fridge overnight before baking.
Reheating: To reheat, bake in a preheated oven at 350°F (175°C) for 20-25 minutes, or until heated through. For microwave reheating, cover with a damp paper towel and heat in intervals until warm.
Portioning: Consider dividing the casserole into single-serving sizes before freezing. This makes it easy to enjoy a quick meal anytime without defrosting the entire dish.
Spinach Broccoli Cheese Casserole Variations
Feel free to unleash your creativity and customize this dish according to your cravings and dietary preferences!
- Chicken Twist: Add 1 cup of cooked, shredded chicken for a protein-packed meal. It transforms this side into a delightful main course!
- Cauliflower Boost: Incorporate 1 cup of riced cauliflower for additional volume and a subtle twist in texture. It blends beautifully with the other veggies!
- Cheesy Delight: Experiment with cheese! Try Pepper Jack for a delightful kick or Gruyere for a rich, nutty flavor. The options are endless!
- Fresh Herbs: Mix in a handful of fresh herbs, like thyme or basil, before baking for an aromatic uplift that brightens the flavor profile.
- Spicy Kick: Add a pinch of crushed red pepper flakes for a warming heat that elevates the entire dish, perfect for spice lovers.
- Nutty Crunch: Top with a sprinkle of toasted breadcrumbs or crushed nuts before baking to add a golden, crunchy texture to the casserole.
- Veggie Medley: Mix in additional cooked vegetables like bell peppers, zucchini, or carrots for extra nutrition and colorful appeal, making each bite a surprise.
- Dairy-Free Option: Swap all cheeses with dairy-free alternatives like cashew cheese and use coconut cream for a creamy texture that caters to vegan diets.
If you’re looking for a bit more inspiration, consider trying a delicious Baked Broccoli Cheese for another comforting dish, or pair it with a delightful Grilled Cheese Burrito for a fun twist on classic comfort foods!
Make Ahead Options
These Creamy Keto Spinach Broccoli Cheese Casseroles are perfect for meal prep enthusiasts! You can prep the entire casserole up to 24 hours in advance by following the initial mixing steps and storing your unbaked dish in the refrigerator, covered with foil. This not only saves time on busy weeknights but also allows the flavors to meld beautifully. To maintain quality, ensure the casserole is tightly wrapped to prevent drying out. When you’re ready to serve, simply remove the cover and bake it as directed, adding an additional 5-10 minutes to the cooking time if it’s straight from the fridge. Enjoy restaurant-quality results with minimal effort!

Spinach Broccoli Cheese Casserole Recipe FAQs
What type of broccoli should I use for this casserole?
Opt for frozen broccoli florets to save time and effort! They provide great texture and flavor. If using fresh broccoli, be sure to chop it into bite-sized pieces and steam or microwave it until tender (about 5-7 minutes in boiling water) for the best results.
Blank line
How long can I store leftovers in the refrigerator?
You can store any leftovers of your Spinach Broccoli Cheese Casserole in an airtight container for up to 3 days. Ensure the casserole cools completely before sealing to maintain its delightful texture and flavor.
Blank line
Can I freeze the casserole for later?
Absolutely! To freeze, wrap the unbaked Spinach Broccoli Cheese Casserole tightly in plastic wrap and aluminum foil, ensuring no air gets in. It will last for up to 3 months in the freezer. When you’re ready to bake, simply thaw it overnight in the refrigerator before placing it in a preheated oven at 350°F (175°C) for about 30-35 minutes.
Blank line
What should I do if the casserole turns out too dry?
If your casserole comes out too dry, it could be due to overbaking or insufficient creaminess from cheese. Next time, keep track of the baking time more closely, and consider adding an extra ounce of cream cheese or a splash of milk to enhance the moisture and richness of the dish.
Blank line
Is this casserole suitable for those with dietary restrictions?
Yes! The Spinach Broccoli Cheese Casserole is keto-friendly and gluten-free, making it a great option for those on specific dietary plans. However, if you’re preparing this for someone with dairy allergies, consider substitutes like nut cheese or a vegan cream cheese to ensure everyone can enjoy it!

Cheesy Spinach Broccoli Casserole: Comfort in Every Bite
Ingredients
Equipment
Method
- Begin your cooking journey by preheating your oven to 350°F (175°C). Gather your ingredients and baking dish.
- Cook your frozen broccoli florets according to the package instructions until fully heated, approximately 5-7 minutes in boiling water.
- In a spacious mixing bowl, combine the hot, drained broccoli, cream cheese, and mayonnaise, along with spinach, garlic, and onion powder. Stir until creamy.
- Spoon the mixture into a lightly greased baking dish and evenly spread it out. Top with shredded mozzarella cheese.
- Place your prepared casserole in the preheated oven and bake for 30-35 minutes until the cheese is bubbly and golden brown.
- Once baked, carefully remove from the oven and let cool for 5 minutes before serving warm.

Leave a Reply