Creamy Chicken Rice Breakfast Casserole is my kind of breakfast bake when I want something savory, filling, and not fussy. It’s basically a cozy mash-up of chicken and rice casserole and a classic egg bake.
The texture is soft and creamy in the middle with a cheesy top, and the seasoning is simple but not bland. I like that the rice makes it feel extra substantial, so a slice actually holds you over.
This is especially good for weekend brunch, holiday mornings, or any time you need breakfast that can sit for a bit while people grab coffee. I usually put hot sauce on mine and keep it simple.

Why You’ll Love This Recipe
Real breakfast energy: The eggs, chicken, and rice make it hearty enough that you’re not hungry an hour later.
Comfort food flavor: It has that creamy, classic casserole taste (thanks to the soup and sour cream) with a cheesy finish.
Brunch-friendly: It slices cleanly and serves easily, so it’s great when you’ve got people coming and going.
Make-ahead friendly: You can assemble it the day before and bake it when you’re ready, which is a big help on busy mornings.
Easy to tweak: Swap the rice, change the veggies, bump up the heat, or use whatever cooked chicken you have.
Ingredients You’ll Need
Base
- Cooked white rice: Day-old rice is great here because it’s a little drier and mixes in evenly. Brown rice works too if that’s what you keep around.
- Cooked shredded chicken: Rotisserie chicken is my go-to because it’s quick and already seasoned. Any leftover roasted or poached chicken works fine.
- Eggs: These set the whole casserole and give it that breakfast-bake feel. Large eggs are what I always use.
- Whole milk: Keeps the egg mixture tender and creamy. You can use 2% in a pinch, but whole milk gives the best texture.
- Cream of chicken soup: This is the “easy button” for creamy casseroles, and it helps everything hold together. The classic canned kind is exactly what I mean.
- Sour cream: I like what sour cream does here—it makes the center softer and a little tangy. Full-fat is best.
- Cheddar cheese: Cheddar gives you that familiar, sharp cheesy flavor. I prefer grating it myself, but pre-shredded works if that’s what you have.
- Mozzarella cheese: This makes it extra melty and stretchy without taking over the flavor. Low-moisture shredded mozzarella is easiest.
- Yellow onion: Adds a little sweetness and makes the casserole taste more like an actual meal. Dice it small so it softens nicely.
- Bell pepper: I like the color and mild bite it adds. Any color is fine—red is a little sweeter, green is a little stronger.
- Garlic: Fresh is best here, but the jarred kind works too. It keeps the whole thing from tasting flat.
- Unsalted butter: Adds richness and helps the casserole bake up tender. If you only have salted butter, just ease up on the added salt a bit.
- Kosher salt: This is the main seasoning, especially since rice can soak up salt fast. Start here and adjust next time to your taste.
- Paprika: Gives a warm, savory flavor and a little color. Regular paprika is fine.
- Black pepper: I like a solid amount of black pepper in creamy casseroles. Freshly ground is great if you have it.
- Cayenne pepper (optional): Add it if you want a gentle heat in the background. If you’re serving kids, I usually leave it out and just add hot sauce at the table.
Finish
- Fresh parsley: This is optional, but it does make the plate look nicer and brightens up the rich flavors. Chives or green onion also work.
- Hot sauce: I like serving this on the side so everyone can do their own level of heat. Any vinegar-style hot sauce is great.

Recipe Instructions
- Preheat the oven: Heat the oven to 350°F and grease a 13×9-inch baking dish.
- Whisk the egg mixture: In a large bowl, whisk the eggs, milk, cream of chicken soup, sour cream, melted butter, salt, paprika, black pepper, and cayenne (if using) until smooth.
- Stir in the mix-ins: Fold in the cooked rice, shredded chicken, onion, bell pepper, garlic, 1 1/2 cups of the cheddar, and all of the mozzarella. Stir until everything is evenly combined.
- Add to the dish: Spread the mixture evenly in the prepared baking dish, then sprinkle the remaining cheddar over the top.
- Bake: Bake for 40 to 45 minutes, until the center is set and the top is lightly golden.
- Rest and serve: Let it rest for about 10 minutes, then garnish with parsley and serve with hot sauce on the side.

Some of my tips!
This is the part that really makes a difference. If you only read one section, make it this one because this is where I share the little trick that helps the recipe turn out so well.
Recipe Tips & Tricks
Use rice that isn’t too wet. If your rice is freshly cooked and steamy, let it cool a bit first. Wet rice can make the casserole looser than you want.
Dice the veggies small. Onion and bell pepper soften as it bakes, but big chunks can stay a little crunchy. Small dice also makes slicing and serving easier.
Don’t overdo the cheese on top. A thick layer can brown fast before the center is set. The amount in the recipe gives you a nice top without turning it into a cheese blanket.
Check the center for doneness. The edges will set first, so look at the middle. It should be set and not jiggly, and a knife should come out mostly clean.
Keep the heat level flexible. If you’re unsure about cayenne, skip it and serve hot sauce at the table. It’s easier than trying to calm down an overly spicy bake.
Make some touches!
There are plenty of easy ways to serve this depending on the occasion. Keep it simple, or add a few small touches to make it feel a little more special.
Serving Suggestions
- Hot sauce: Serve it right at the table so everyone can add their own. A vinegar-based hot sauce is especially good with the creamy filling.
- Fresh fruit: A bowl of berries, melon, or oranges is nice alongside something this rich. It keeps the plate from feeling too heavy.
- Simple greens: If you’re doing this for brunch, I like a basic arugula salad with lemon and olive oil. Nothing fancy.
- Extra toppings: A dollop of sour cream, sliced green onion, or a little extra cheddar on top works well. Keep it simple and let people build their own plate.
Save it for later
This section covers how to store leftovers and what parts of the recipe you can prepare ahead of time.
Storage and Make Ahead
Store leftovers covered in the fridge for up to 4 days. Reheat slices in the microwave, or cover the baking dish with foil and warm it in the oven until hot.
You can also make this recipe ahead by assembling the casserole, covering it tightly, and refrigerating it for up to 24 hours before baking.
When you bake it straight from the fridge, it will usually need an extra 5 to 10 minutes. Start checking the center near the end so it doesn’t overbake.
If you want it to last longer, freeze baked portions in an airtight container for up to 2 months. Thaw in the fridge overnight and reheat until hot.

A few quick answers
This section covers a few extra details that may help before you head to the recipe card.
Recipe FAQs
Can I use rotisserie chicken?
Yes, and I think it’s the easiest option. Just shred it or chop it into bite-size pieces and you’re good to go.
Can I swap the rice for something else?
You can use cooked brown rice or cooked quinoa. Both work well, but brown rice can feel a bit chewier, and quinoa will make the casserole a little lighter.
How do I know when the casserole is set?
The middle should look set, not wet or jiggly. If you insert a knife near the center, it should come out mostly clean, with maybe a little melted cheese on it.
Can I add extra vegetables?
Yes. Thawed frozen spinach works well (squeeze out the water first), and sautéed mushrooms are good too. Just don’t add a lot of extra moisture or the bake can get soft.
Can this be frozen?
It can. I prefer freezing it after baking in individual portions, then thawing in the fridge overnight before reheating.
You might also like
Before you go, take a look at a few other recipes below the recipe card. They use similar ingredients in a different way and are worth saving too.

Creamy Chicken Rice Breakfast Casserole
INGREDIENTS
Base
- 3 cups cooked white rice
- 2 cups cooked shredded chicken
- 8 large eggs
- 1 cup whole milk
- 1 can 10.5 oz cream of chicken soup
- 1 cup sour cream
- 2 cups shredded cheddar cheese
- 1 cup shredded mozzarella cheese
- 1 cup diced yellow onion
- 1 cup diced bell pepper
- 2 cloves garlic minced
- 2 tbsp unsalted butter melted
- 1 tsp kosher salt
- 1 tsp paprika
- ½ tsp black pepper
- ¼ tsp cayenne pepper optional.
Finish
- 2 tbsp chopped fresh parsley for garnish
- hot sauce to serve.
INSTRUCTIONS
Mix
- preheat oven to 350 F and grease a 13 by 9 inch baking dish
- whisk eggs milk cream of chicken soup sour cream melted butter salt paprika pepper and optional cayenne until smooth
- fold in cooked rice chicken onion bell pepper garlic and 1.5 cups cheddar plus all mozzarella until evenly combined.
Bake
- spread mixture in the baking dish and top with remaining 0.5 cup cheddar
- bake until center is set and top is lightly golden about 40 to 45 minutes
- rest 10 minutes then garnish with parsley and serve.
