Serve up creamy, savory, low-carb goodness in less than an hour with this easy one-pan dish!

Who doesn’t love a casserole? They’re easy to put together, bake in one dish, and get dinner on the table quickly! This keto everything bagel chicken casserole is particularly family-friendly. It’s fast and filling, goes easy on the carbs—and its savory flavor profile is mild enough for picky eaters but interesting enough for more mature palates. Plus, it keeps well and makes for delicious leftovers.
I remember the first time I tasted an everything bagel. I typically opted for other bagel flavors, like whole wheat or cinnamon raisin. But a friend raved about the “everything” choice, so I gave it a try. I was impressed at how the layers of different flavors worked together without clashing. The garlic and onions made a savory foundation for the nutty notes and satisfying crunch of the poppy seeds and toasted sesame seeds. Flakes of salt brought in a nice bite that enhanced the overall experience.
Those complex yet familiar flavors elevate this casserole’s simple ingredients. And it’s plate-ready in less than an hour! It has become a weeknight go-to for me and my partner because it’s so easy, versatile, and delicious.

Tips for a tailored casserole
This recipe is fabulous as written, but you can make it your own with a little creativity!
First off, any cooked chicken works well in this dish. If you’ve got leftovers from a whole roasted chicken, grilled chicken breasts, or sautéed chicken thighs, just shred them and toss them in. But if all you have is frozen chicken, don’t despair! This tutorial for How To Cook Frozen Chicken In An Instant Pot will get your casserole ingredient prepped in just over half an hour.
Not a fan of sour cream? Sub in the same amount of plain Greek yogurt or crème fraîche.
Want a cheesier casserole? Add a cup of shredded cheddar, pepper jack, or Swiss cheese to the casserole base—and sprinkle a bit more on top to get a golden, bubbly crust.
Looking to get in your daily veggies? Try mixing in fresh or thawed frozen peas, carrots, or broccoli florets to add color, flavor, and nutrition. Make them kid-friendly by pulsing them in a food processor first so they practically disappear into the gooey cheesiness.

How do I store leftovers?
Let your casserole cool completely before storing it, but don’t leave it at room temp for longer than 2 hours. Store leftovers in an airtight container in the fridge for up to 4 days or in the freezer for up to 3 months. The texture may change slightly after freezing due to the cream cheese, but the flavor will remain delicious. Thaw overnight in the fridge. Reheat in a skillet on the stovetop, in a 350°F oven, or in the microwave until piping hot throughout.

Similar recipes to try
Hungry for more low-carb, low-effort dishes that feature chicken? Check out this fast and easy recipe for Spinach Artichoke Chicken Casserole, this one for Chicken Enchilada Casserole, this Keto Fajita Casserole, and this simple method for making Mexican Shredded Chicken in an Instant Pot or slow cooker.

Low-Carb Everything Bagel Chicken Casserole
Ingredients
- 1 cup cream cheese softened
- 1/2 cup sour cream
- 1 tablespoon mustard yellow or Dijon
- 2 tablespoons everything bagel seasoning plus more, for topping
- 1/2 teaspoon salt
- Pinch of pepper
- 3 cups cooked chicken about 12-14 ounces
- 2 cups cauliflower rice about 16 ounces, thawed if frozen
Instructions
- Preheat oven to 375°F. Prepare an 8×12-inch or 9×13-inch casserole dish with a spritz of nonstick cooking spray or a light coating of butter.
- In a large mixing bowl, combine the cream cheese, sour cream, mustard, bagel seasoning, salt, and pepper. Stir until evenly mixed.

- Fold in the cooked chicken and cauliflower rice until well combined.
- Spread the mixture into the prepared casserole dish. Top with a bit more bagel seasoning, if desired.

- Bake until the top is slightly golden and the casserole is heated through, about 25 minutes. Let the dish rest at room temp for 5 minutes to make slicing easier. Serve hot.



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