Introduction

This Keto Cheesy Spinach Broccoli Casserole is a creamy, comforting dish perfect for low-carb meals. Packed with fresh spinach, tender broccoli, and melted cheese, it’s an easy way to enjoy a healthy veggie casserole that feels indulgent.

The image shows a white oval baking dish filled with a cooked spinach and cheese casserole. The top layer is golden brown melted cheese with browned spots scattered across a thick, creamy mixture of finely chopped leafy spinach beneath. A silver spoon is scooping out a portion from the right side, revealing a textured, greenish base mixed with cheese under the browned crust. The dish rests on a white marbled surface. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

1 clove of garlic, crushed
12 ounce package of frozen broccoli florets (approx 4 cups)
2 cups fresh spinach
2 tablespoons mayonnaise
2 ounces cream cheese
1/2 cup sharp cheddar cheese
3/4 cup mozzarella cheese
1/2 teaspoon onion powder

Instructions

Step 1: Preheat the oven to 350°F (175°C).
Step 2: Cook the broccoli according to the package instructions. If using fresh broccoli, chop it and microwave for about 5 minutes until tender.
Step 3: Drain the cooked broccoli and place it in a large mixing bowl. Add cream cheese, mayonnaise, crushed garlic, onion powder, and fresh spinach. Mix well to combine. The heat from the broccoli will melt the cheeses and wilt the spinach.
Step 4: If desired, season with salt and black pepper, keeping in mind the cheeses already add saltiness.
Step 5: Lightly spray a baking dish with nonstick cooking spray. Spread the broccoli and spinach mixture evenly in the dish.
Step 6: Sprinkle mozzarella cheese over the top. Bake in the preheated oven for 30-35 minutes, until the casserole is browned and bubbly.

Tips & Variations

Use fresh garlic instead of powder for a stronger flavor boost.
Substitute mayonnaise with sour cream or Greek yogurt for a tangier taste.
Try adding cooked bacon or cooked chicken pieces for extra protein.
Swap sharp cheddar with smoked gouda or pepper jack for a different cheese profile.
Make it vegetarian by using cream cheese and cheese without animal rennet.

Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or oven until warmed through. This casserole doesn’t freeze well because of the fresh spinach’s texture changes when thawed.

How to Serve

The image shows a white baking dish with a cheesy spinach casserole inside, partially scooped out from one corner with a silver spoon resting in it. The casserole has a golden-brown melted cheese layer on top with some browned spots, showing a creamy green spinach layer beneath it. Next to the dish is a white plate with a serving of the casserole, displaying layers of melted cheese melted into wilted green spinach, and a slight browned crust on top. Both are placed on a dark cloth with light leaf patterns, and the surface underneath has a white marbled texture. photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use fresh broccoli instead of frozen?

Yes, fresh broccoli works well. Just chop it into florets and microwave or steam until tender before mixing.

Is this dish suitable for a keto diet?

Absolutely. It’s low in carbs and high in fat and protein from the cheeses and mayonnaise, making it a great keto-friendly casserole.

Keto Cheesy Spinach Broccoli Casserole Recipe

Print Recipe

★★★★★

4.5 from 113 reviews

A delicious and creamy Keto Cheesy Spinach Broccoli Casserole that combines tender broccoli and fresh spinach with a blend of sharp cheddar, mozzarella, and cream cheese for a low-carb, satisfying side dish or main course.

Author: Cleo
Prep Time: 10 minutes
Cook Time: 35 minutes
Total Time: 45 minutes
Yield: 6 servings 1x
Category: Casserole
Method: Baking
Cuisine: American
Diet: Low Carb

Ingredients

Scale

Vegetables

1 clove of garlic, crushed
12 ounce package of frozen broccoli florets (approx 4 cups)
2 cups fresh spinach

Dairy & Condiments

2 tablespoons mayonnaise
2 ounces cream cheese
1/2 cup sharp cheddar cheese, shredded
3/4 cup mozzarella cheese, shredded

Spices

1/2 teaspoon onion powder

Instructions

Preheat Oven: Preheat your oven to 350°F to prepare for baking the casserole.
Cook Broccoli: Cook the frozen broccoli according to the package instructions. If using fresh broccoli, chop and microwave it for about 5 minutes until tender. Drain thoroughly.
Mix Ingredients: In a large mixing bowl, combine the hot broccoli with cream cheese, mayonnaise, crushed garlic, onion powder, and fresh spinach. Stir well to incorporate all ingredients. The heat from the broccoli will help melt the cheeses and wilt the spinach. Season with salt and black pepper if desired, though the cheese provides enough saltiness.
Prepare Baking Dish: Spray a baking dish with nonstick cooking spray. Spread the broccoli and spinach mixture evenly in the dish.
Add Cheese Topping and Bake: Sprinkle the shredded mozzarella cheese evenly on top of the mixture. Place the baking dish in the preheated oven and bake for 30 to 35 minutes until the casserole is browned on top and bubbly.

Notes

Using fresh broccoli requires microwaving it to soften before mixing; frozen broccoli can be cooked as per package directions.
For extra flavor, optional salt and black pepper can be added, but often the cheeses provide sufficient seasoning.
Make sure to drain the cooked broccoli well to avoid a watery casserole.
This casserole is great as a keto-friendly side or light main dish.
For a dairy-free version, substitute cheeses with non-dairy alternatives.

Keywords: Keto, cheesy casserole, spinach, broccoli, low carb, keto casserole, keto side dish, low carb vegetables, cheesy broccoli recipe