French Onion Chicken Casserole

  • Jump to Recipe
  • If you are like me, sometimes you need a quick fix on a weeknight. This French Onion Chicken Casserole is simple and fast.

    wooden spoon scooping out french onion chicken casserole with text overlay for facebook

    I associate the sound of that can popping with warm memories of childhood honey and biscuits. While I still love them (especially with Cranberry Syrup), I have also found ways to use them in my savory dishes, especially quick weeknight meals.

    Those buttery layers are just so versatile! Now I am craving biscuits…

    Why You’ll Love This Dinner

    This time of year I crave warm comfort food and nothing says comfort more than a bowl of French Onion Soup, but on busy weeknights, I just don’t have the time.

    So, I converted my favorite cheesy soup into a soul-warming casserole: French Onion Chicken Casserole. See where this is going?

    To save on time, I used store-bought rotisserie chicken and caramelized onions I had frozen the month before blended with sour cream, beef bullion, mayonnaise, and cream.

    To top off my French Onion Chicken Casserole, I used traditional Swiss cheese slices and buttery biscuits. All the ingredients in one bite make a blissful and satisfying one-dish meal with little cleanup.

    So POP a can of your own and make French Onion Chicken Casserole for dinner tonight! Your family will LOVE it. I promise!

    overhead shot of pan of french onion chicken casserole

    Ingredients

    • Chicken – You want this to be shredded or cubed. My favorite way to save time is to use a store bought rotisserie chicken. However you can cook some juicy chicken breasts in a large skillet yourself too.
    • Mayonnaise – Although creamy, mayonnaise is really just oil and egg. So on top of adding a little flavor, it also helps to bind everything together.
    • Sour cream – This adds to the creaminess and substance to the casserole. You could also use plain greek yogurt instead.
    • Heavy cream – This helps to thin everything out while also keeping this creamy chicken casserole just that, creamy.
    • Beef bouillon granules – To achieve granules, simply grind them with a mortar and pestle or the back of a spoon.
    • Salt and pepper – I always prefer to use fine sea salt and freshly ground pepper when cooking.
    • Rubbed sage – If you don’t have sage on hand, feel free to sub rosemary or thyme instead.
    • Caramelized onions – Yes, there is a difference between sautéed onions and caramelized onions. Click over to find out the difference!
    • French cut green beans – I suppose you could use regular green beans for this french onion chicken bake, but in sticking with the french theme, this is what I used.
    • Swiss cheese – I prefer Swiss cheese as it gets all melty and delicious, but see the variations selection below for other cheese options.
    • Grands biscuits – Simple ingredients is what makes this one of my favorite recipes. And ready made biscuit cut into quarters is an easy way to simplify this meal.
    serving of french onion chicken casserole

    How to Make French Onion Chicken Casserole

    1. Prepare oven and baking dish. Coat a casserole dish with cooking spray and preheat oven.
    2. Combine filling ingredients. In a large mixing bowl, combine chicken through rubbed sage. Mix well.
    3. Add green beans and onions. Fold in French cut greens beans and caramelized onions. Spread mixture evenly into your dish.
    4. Bake. Bake for an initial 30 minutes to warm the filling.
    5. Add cheese and biscuits. Remove and layer Swiss cheese over hot chicken mixture. Evenly distribute Grands biscuits quarters and return to oven for 10 minutes, or until tops are lightly browned.
    6. Serve. Remove from oven, serve onto plates and top with fresh chopped parsley.
    collage of how to make french onion chicken casserole

    Variations

    • Cream of chicken soup – A lot of delicious casserole recipes use a can of cream of chicken soup as the base. While it won’t be as creamy, you can certainly use that in place of the sour cream.
    • Cheese – Instead of Swiss, try adding your favorite cheese instead. Some great options would be parmesan cheese, mozzarella cheese, gruyere cheese or even provolone cheese. The glorious melted cheese might be my favorite part!
    • Veggies – If you don’t have a picky eater in the family and would like to add more veggies, yellow onions, broccoli or even those delicious french fried onions would be a great addition to this easy french onion chicken casserole.
    overhead shot of serving of french onion chicken casserole on plate

    What to Serve with French Onion Casserole

    This casserole is great with just about any side dish. But here are a few of our favorite sides:

    • Egg noodles
    • A side salad
    • Broccoli florets
    • Cauliflower rice
    overhead shot of baking dish of french onion chicken casserole

    Storage and Freezing

    This casserole makes great leftovers! You can store this french onion chicken casserole in an airtight container in the refrigerator for up to five days.

    And if you have leftovers and need to freeze them, check out my tips for how to freeze a casserole!

    collage of french onion chicken casserole for pinterest

    More Easy Weeknight Dinners

    Juicy Ranch Burgers
    A close up of a hamburger on a plate
    No time for boring burgers after you've tried this Ranch Burgers recipe! Only 3 ingredients, plus your favorite burger toppings!
    Spinach Stuffed Mushrooms
    vegetarian stuffed mushrooms
    Does you partake in meatless Monday? These EASY Spinach Stuffed Mushrooms are so tasty and filling that you won't miss the meat at all! The BEST appetizer!
    Microwaved Sweet Potatoes
    close up of microwaved baked sweet potato
    Cooking sweet potatoes doesn’t have to be a long, drawn out process. All you need are your spuds, a microwave, and a fork, and you are in business. 
    baking dish of french onion chicken casserole with text overlay for pinterest
    serving of french onion chicken casserole
    Print Recipe
    4.42 from 43 votes

    French Onion Chicken Casserole

    French Onion Chicken Casserole is a one-dish meal that blends chicken, green beans, a creamy sauce, and buttery biscuits. It’s 100% delicious!
    Prep Time5 mins
    Cook Time45 mins
    Total Time50 mins
    Course: Main Course, Main Dish
    Cuisine: American
    Keyword: chicken casserole, french onion chicken
    Servings: 6
    Calories: 533kcal
    Author: Jessica Formicola

    Ingredients

    Instructions

    • Coat an 8×11 or 9×13 dish with cooking spray. Preheat oven to 350 degrees.
    • In a large mixing bowl, combine chicken through rubbed sage. Mix well.
    • Fold in French cut greens beans and caramelized onions. Spread mixture evenly into your dish.
    • Bake for 30 minutes. Remove and layer Swiss cheese over hot chicken mixture. Evenly distribute Grands biscuits quarters and return to oven for 10 minutes, or until tops are lightly browned.
    • Enjoy your French Onion Chicken Casserole!
    • If you’ve tried this recipe, come back and let me know how it was! 

    Video

    Notes

    If you have beef bouillon cubes, grind them with a mortar and pestle or the back of a spoon.

    Nutrition

    Calories: 533kcal | Carbohydrates: 9g | Protein: 31g | Fat: 40g | Saturated Fat: 14g | Cholesterol: 123mg | Sodium: 702mg | Potassium: 345mg | Fiber: 1g | Sugar: 3g | Vitamin A: 655IU | Vitamin C: 5.1mg | Calcium: 268mg | Iron: 1.7mg
    image of jessica formicola

    You Might Also Like...

    Leave a Reply

    Your email address will not be published.

    Recipe Rating




    What type of comment do you have?

    Comments

  • Britni wrote:
  • Marsha wrote: