Skinny Chicken Broccoli Casserole

Skinny Chicken Broccoli Casserole has become a staple in our household, not just for its nutritious elements but for its ease and convenience. Replete with lean chicken, nutrient-packed broccoli, and savory mushrooms enveloped in a light and creamy sauce, this dish is an epitome of comfort food, yet surprisingly guilt-free. It’s perfect for bustling evenings and even gets a nod of approval from my career-driven husband and our two active boys.

My husband, a dedicated attorney, has had a fascinating journey from law school to managing roles in large firms and, most recently, an in-house position at a hedge fund company. With improved work hours, he now has the time to enjoy home-cooked meals, especially during his well-deserved vacation weeks. One of our family’s favorite dishes? You guessed it, Skinny Chicken Broccoli Casserole.

Prepping Ahead: A Lifesaver for Busy Schedules

What I absolutely adore about this casserole is its flexibility. With everyone’s demanding timetable, the ability to prepare this dish in advance is invaluable. Simply assemble the ingredients, leave it in the fridge, and pop it in the oven when you’re ready. The convenience aligns seamlessly with my husband’s sporadic late-night work hours and our sons’ extracurricular activities.

Lean Protein and Nutritional Boost

This dish boasts a plethora of health benefits. From the lean protein in chicken to the fiber and vitamins in broccoli, it’s a balanced meal that doesn’t skimp on flavor. Incorporating fat-free plain Greek yogurt adds a creamy texture without the unnecessary fats, making every bite not only delicious but guilt-free.

A Light & Creamy Sauce to Relish

The sauce is arguably the linchpin that brings the whole dish together. It’s a blend of flour, fat-free milk, light mayonnaise, and seasonings, creating a delicate yet impactful flavor profile. The lightness of the sauce complements the heartiness of the chicken and the earthiness of the broccoli and mushrooms.

Easy-To-Follow Recipe Instructions

Assembling this casserole is as simple as it gets, making it an ideal recipe even for culinary novices. It starts with sautéing onions and mushrooms, adding chicken cubes, and then sprinkling flour to act as a thickening agent. Mix in the milk, bring it to a boil, and voila! You’ve got yourself a sumptuous base. Incorporate the remaining ingredients, top with cheese, and you’re just 20 minutes away from a hot, delicious meal.

FAQs on Skinny Chicken Broccoli Casserole

Can I substitute the fat-free milk with a plant-based alternative? Absolutely, almond or oat milk could work splendidly. Just be sure to adjust the seasonings accordingly.

Why is my casserole a bit watery? If you find your casserole too runny, you might have skipped or rushed the boiling step where the milk is supposed to thicken. Patience is key here.

Is this dish freezer-friendly? You bet! This casserole can be prepared in advance and frozen, ensuring that a wholesome meal is always within arm’s reach, even on the busiest of days.

Skinny Chicken Broccoli Casserole is more than just a meal; it’s a lifeline for busy families, a nod to health-conscious eating, and a flavor-packed dish that will have everyone asking for seconds. Enjoy it as is or customize it to fit your family’s specific tastes. Either way, this casserole is bound to be a hit!

Creamy Chicken Broccoli Casserole

Indulge in a wholesome dish that’s a symphony of tender chicken, fresh broccoli, and succulent mushrooms—all enveloped in a light, creamy sauce. This easy-to-make casserole is perfect for those looking for a nutritious yet delicious meal.
4 from 6 votes
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Course: Main
Cuisine: American
Keyword: Creamy Chicken Broccoli Casserole
Prep Time: 15 minutes
Cook Time: 20 minutes
Total Time: 35 minutes
Servings: 6


  • 2 cups Chicken Breasts boneless and skinless, cubed
  • 1 16- oz Broccoli Florets steam-in-bag
  • 1 small Onion finely chopped
  • 1/4 cup Light Mayonnaise
  • 2 8- oz Mushrooms sliced packages
  • 1 Tbsp. Olive Oil
  • 1 1/2 cups Fat-Free Milk
  • 1/4 tsp. Salt
  • 3 Tbsp. All-Purpose Flour
  • 1/4 tsp. Pepper
  • 1 5.3- oz Fat-Free Plain Greek Yogurt container
  • 3/4 cup Mexican-Style Cheese Blend


  • Preheat the Oven: Start by setting your oven to 350°F (175°C). Generously coat a 2-quart casserole dish with cooking spray.
  • Broccoli Prep: Follow the microwave directions on the steam-in-bag broccoli package. Once done, set it aside for later incorporation.
  • Sauté the Veggies: Heat olive oil in a pan over medium-high flame. Toss in chopped onions and sliced mushrooms. Sauté until the mushrooms take on a tender disposition.
  • Add Chicken: Introduce the cubed chicken into the pan. Continue to cook until the chicken turns white and is cooked thoroughly. Drain excess liquid if necessary.
  • Flour Coating: Sprinkle the all-purpose flour over the chicken and mushroom medley, stirring consistently. Cook this mixture for about a minute.
  • Integrate Milk: Add milk while stirring, and bring the mixture to a boil. Allow it to cook for approximately 3 minutes or until it achieves a thick and bubbly consistency.
  • Combine All: Incorporate the pre-cooked broccoli into the pan and heat it for about a minute. Fold in the Greek yogurt, light mayonnaise, salt, and pepper, making sure all the ingredients mesh well.
  • Assemble Casserole: Transfer the mixture into the pre-sprayed casserole dish. Garnish the top layer with Mexican-style cheese blend.
  • Bake: Insert the casserole dish into the oven and let it bake for 20 minutes. It’s ready when the cheese has melted and the edges have a nice, bubbly sear.


This recipe is inspired by a feature in the Cooking Light Magazine’s Jan/Feb ’14 issue.


  1. Mrs. Kathleen Mary Cavalcanto

    Oh I love to cook and love simple recipes.

  2. Linda a Barrante

    I would like to see other opportunities to share such as just SHARE AND ALSO E MAIL. NOT EVERYONE HAS A PRINTER OR ON PINTEREST.

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