Easy Low Carb Chicken Casserole

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This low-carb chicken casserole combines juicy chicken, crisp bacon, and broccoli or spinach baked in a cheesy, creamy sauce. Simply mix cooked chicken, bacon, garlic, ranch dressing, and cheese with your preferred veggies, then top with more cheese and bake. The result is a golden, bubbly favorite that’s filling, low in carbs, and packed with protein. Using ranch dressing lends extra flavor, while two kinds of cheese create a smooth, gooey texture. It’s easy to prepare ahead for a weeknight family dinner or meal prep. Adjust seasonings to taste, and enjoy a comforting meal straight from the oven.

Barbara Chef
Updated on Tue, 29 Jul 2025 16:54:30 GMT
A white bowl filled with chicken and broccoli. Pin it
A white bowl filled with chicken and broccoli. | gracefulflavors.com

This creamy low carb chicken casserole is the answer to those nights when you need something hearty and comforting but do not want to fuss in the kitchen or load up on carbs. Packed with tender chicken broccoli smoky bacon and a blend of gooey cheeses it is a crowd pleaser that even the pickiest eaters ask for again and again.

I created this dish out of a need to please both the kids and adults at dinner and it quickly landed in my rotation especially on busy weeknights.

Ingredients

  • Diced or shredded cooked chicken breast: Use leftover roast or rotisserie for speed and flavor
  • Cooked and chopped bacon: Adds smoky richness try using thick cut for extra bite
  • Broccoli florets or thawed frozen spinach: Both give bulk and nutrition Broccoli brings crunch while spinach makes it creamy Be sure to drain spinach thoroughly for best texture
  • Minced garlic: Brightens the dish It is worth using fresh cloves
  • Ranch dressing: Forms the creamy base Pick a good quality one with real herbs for best results
  • Shredded mozzarella cheese: Melts beautifully and makes the casserole gooey
  • Shredded cheddar cheese: Offers sharpness and bold flavor Choose extra sharp for more kick
  • Optional ranch seasoning mix: Kicks up the flavor For quality go with a blend without fillers

Step-by-Step Instructions

Prepare Vegetables:
If using fresh broccoli chop into bite-size pieces and boil for one to two minutes until just vibrant green then drain well If using frozen spinach let it thaw fully then squeeze out all water using a clean kitchen towel so your casserole is not watery
Combine the Main Ingredients:
In a large mixing bowl place the cooked chicken chopped bacon prepared vegetables minced garlic ranch dressing and half of both cheeses Use a large spoon to really fold it all together so the ranch coats everything evenly If you want extra tang add ranch seasoning to taste Optionally you can mix all this directly in your baking dish to cut down on cleanup
Transfer to Casserole Dish:
Lightly grease a nine by thirteen inch baking dish then spread the mixture in an even layer
Add the Cheese Topping:
Scatter the remaining mozzarella and cheddar evenly over the surface so every bite gets that bubbling cheese lid
Bake and Serve:
Place dish in a 375 degree oven and bake for fifteen minutes or until the cheese on top is melted and golden with some bubbly edges Let it settle two to three minutes before scooping to help the pieces hold their shape
A dish of chicken and broccoli. Pin it
A dish of chicken and broccoli. | gracefulflavors.com

Broccoli remains a favorite in my kitchen not only for its flavor but because it soaks up all that cheesy sauce so well My grandma used to sneak extra vegetables into casseroles and I carry on that tradition now with my own spin

Storage Tips

Let the casserole cool completely then cover tightly and store in the refrigerator for up to four days It also freezes surprisingly well Spoon leftovers into individual containers and freeze for up to three months For reheating use the oven to keep the topping crisp or the microwave for speed

Ingredient Substitutions

You can swap chicken for turkey ham or even cooked ground sausage with great results If you prefer a non dairy option look for coconut based ranch and plant based cheeses If broccoli or spinach is not your favorite cauliflower or kale are good alternatives

Serving Suggestions

This casserole works as a stand alone meal for lunch or dinner I love serving it with a crisp green salad and sliced avocado for a fresh element For gatherings offer it alongside roasted vegetables or even atop mashed cauliflower for double comfort

A white bowl filled with chicken and broccoli. Pin it
A white bowl filled with chicken and broccoli. | gracefulflavors.com

A Comfort Classic With A Twist

Traditional chicken casseroles often rely on pasta or rice but this version lets you enjoy the same creamy texture without the carbs It is a recipe that bridges the gap between nostalgic flavors and modern eating I love that it brings everyone to the table no matter their diet preferences

Frequently Asked Questions

→ Can I substitute spinach for broccoli?

Yes, you can use thawed, well-drained frozen spinach instead of broccoli for a different flavor and texture.

→ What type of chicken works best?

Cooked chicken breast, either shredded or diced, is ideal. Rotisserie chicken or leftover chicken is convenient.

→ How do I prevent a watery texture?

If using spinach, make sure to remove excess water. For broccoli, drain well after blanching.

→ Can I prepare this ahead of time?

Yes, assemble the casserole up to a day ahead, refrigerate, and bake just before serving for best results.

→ What cheeses are recommended?

A blend of mozzarella and cheddar delivers both a creamy texture and sharp flavor in each bite.

→ Is this dish suitable for meal prep?

Absolutely. Store portions in the fridge and reheat as needed for easy lunches or dinners during the week.

Easy Low Carb Chicken Casserole

Juicy chicken, rich bacon, and broccoli unite with cheese for a quick, low-carb bake everyone will love.

Prep Time
18 Minutes
Cook Time
15 Minutes
Total Time
33 Minutes
By: Barbara

Category: Hearty Mains

Difficulty: Easy

Cuisine: American

Yield: 1 casserole, serves 6–8

Dietary: Low-Carb, Gluten-Free

Ingredients

→ Casserole

01 4 cups diced or shredded cooked chicken breast
02 8 slices cooked and chopped bacon
03 5 cups broccoli florets or 1 pound thawed frozen spinach, well-drained
04 3 cloves minced garlic
05 1 cup ranch dressing
06 1/2 cup shredded mozzarella cheese
07 1/2 cup shredded cheddar cheese

→ Topping

08 1/2 cup shredded mozzarella cheese
09 1/2 cup shredded cheddar cheese

→ Optional

10 1 to 3 teaspoons ranch seasoning mix

Instructions

Step 01

If using frozen spinach, thaw fully and squeeze out excess water. For broccoli, boil florets for 1–2 minutes until bright green, then drain.

Step 02

Preheat oven to 375°F (191°C).

Step 03

In a large bowl, combine cooked chicken, bacon, prepared vegetables, minced garlic, ranch dressing, 1/2 cup mozzarella cheese, and 1/2 cup cheddar cheese. Mix until uniformly blended. Incorporate optional ranch seasoning if desired.

Step 04

Move mixture into a 9×13 inch (23×33 cm) casserole dish, spreading evenly.

Step 05

Sprinkle remaining mozzarella and cheddar cheeses evenly over the top.


A dish of chicken and broccoli.
Step 06

Bake for approximately 15 minutes. Remove when top is hot and bubbly. Serve immediately.


A white bowl filled with chicken and broccoli.

Notes

  1. To save on dishes, all ingredients can be mixed directly in the casserole dish instead of a bowl.

Tools You'll Need

  • Large mixing bowl
  • 9×13 inch (23×33 cm) casserole dish
  • Saucepan for blanching
  • Oven

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains dairy from cheese and ranch dressing

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 2350
  • Total Fat: 152.5 g
  • Total Carbohydrate: 45 g
  • Protein: 200 g