
This Broccoli Cheddar Biscuit Casserole brings together everything comforting in one baking dish creamy broccoli cheddar filling meets buttery golden biscuits for a meal that always draws a crowd at my table in chilly months Nothing beats the aroma as it bakes and bubbles in the oven
My mom first brought this over on a snowy Sunday and now we make it for every family movie night The blend of cheesy broccoli with tender chicken and those fluffy biscuits makes everyone happy
Ingredients
- Homemade buttermilk biscuits or canned biscuits: Top with your favorite biscuits for a soft and golden crown Use high quality butter for a flaky finish
- Unsalted butter: Rich base flavor Choose fresh creamy sticks for best results
- Yellow onion: Finely diced for sweetness and depth Look for firm onions with papery skins
- Fresh garlic: Minced to brighten the sauce Select plump cloves for best flavor
- All purpose flour: Helps thicken the filling Choose unbleached for a natural taste
- Chicken broth: Adds savoriness Opt for low sodium to control salt
- Whole milk: Room temp for smooth blending Brings richness and silkiness
- Broccoli florets: Main veggie star Fresh or frozen florets with bright green color
- Kosher salt and black pepper: Seasoning essentials Choose freshly cracked pepper for a kick
- Cayenne pepper: Just a touch for gentle heat Adjust to your taste
- Shredded rotisserie chicken: Adds protein and texture Use freshly pulled rotisserie for juiciness
- Sharp cheddar cheese: Hearty flavor melt freshly shredded for best texture
- Butter for garlic topping: Melts over biscuits for a mouthwatering finish
- Garlic minced again: Boosts biscuit flavor Use the freshest
- Fresh parsley: Sprinkled on top for color and freshness Pick leaves with bright green hues
Step-by-Step Instructions
- Prepare Baking Dish:
- Lightly butter a 13x9 baking dish to prevent sticking This helps the casserole release easily and keeps those biscuits perfectly crisp at the edges
- Sauté Aromatics:
- Melt butter in a large skillet over medium heat Add finely diced yellow onion stirring and cooking for 8 minutes until translucent and beginning to caramelize Add the minced garlic and sauté for one more minute until fragrant
- Make Roux:
- Sprinkle in flour and whisk constantly Allow flour and butter to blend and turn lightly golden about one minute This deepens flavor and ensures your casserole thickens evenly
- Create Creamy Base:
- Slowly pour in chicken broth and room temp whole milk Whisk constantly to blend and smooth out any lumps Continue whisking until the sauce is creamy and free of flour pockets
- Simmer Broccoli:
- Add broccoli florets salt pepper and cayenne Stir to combine Bring everything to a gentle simmer Let it cook uncovered for 12 to 15 minutes stirring occasionally until broccoli is just tender
- Prepare Biscuits:
- While broccoli simmers open your can of biscuits or shape your homemade dough into rounds Six biscuits fit perfectly on top
- Add Chicken and Cheese:
- Once the broccoli is tender remove from heat Stir in shredded rotisserie chicken and sharp cheddar until cheese melts into the sauce
- Assemble Casserole:
- Transfer the cheesy chicken mixture into your prepared baking dish Top evenly with prepared biscuits placing them right on the casserole
- Bake:
- Slide the dish into a 375 degree oven Bake for 15 minutes or until the biscuits are golden and the filling is bubbling around the edges
- Make Garlic Butter Topping:
- While baking mix melted butter with garlic salt and parsley This buttery mix will take your biscuit topping to the next level
- Finish and Serve:
- Brush the tops of golden biscuits with garlic butter as soon as the casserole comes out of the oven Let it set for about five minutes then serve hot and enjoy each bite

I love sharp cheddar for its tang and creaminess and it reminds me of my grandma who always used the good cheese for casseroles One Christmas we made this together and the kids kept sneaking biscuits off the top
Storage Tips
Let the casserole cool fully before covering tightly with foil or transferring to airtight containers Store in the refrigerator for up to four days Leftovers can be reheated in the oven at 350 until warmed through to keep the biscuits crisp For longer storage freeze individual portions without the biscuit topping and add fresh biscuits after thawing
Ingredient Substitutions
Swap in frozen broccoli if fresh is unavailable and thaw before adding Substitute pre cooked turkey for chicken or use a mixture of cheddar and mozzarella for a milder cheese pull You can also use a dairy free milk alternative and vegan cheese for dietary needs
Serving Suggestions
Serve this casserole with a fresh green salad or roasted carrots for a complete meal It is also delicious next to fruit salad for brunch or as a kid friendly dinner alongside applesauce Soft rolls or extra biscuits on the side are always welcomed at my table

Cultural and Historical Context
Casseroles have always been the heart of American family gatherings blending convenience with comfort They became popular mid century as a way to stretch protein and vegetables while making dinner for a crowd This broccoli cheddar take is a modern twist inspired by potluck classics and Southern biscuit bakes
Recipe FAQs
- → Can I use frozen broccoli instead of fresh?
Yes, frozen broccoli can be added directly, but thaw and drain excess moisture for best results.
- → What type of biscuits work best for this dish?
Homemade buttermilk or canned biscuit dough both work well for a fluffy, golden topping.
- → Can I substitute the chicken with another protein?
Feel free to swap in cooked turkey, ham, or even sautéed mushrooms for a vegetarian version.
- → How do I prevent soggy biscuits on top?
Add the biscuits to the baking dish just before baking, and bake uncovered until golden.
- → Can this dish be prepared ahead of time?
You can assemble the broccoli-cheddar base in advance and add biscuits just before baking.