Broccoli Cheddar Biscuit Casserole combines a homemade creamy sauce, four cups of broccoli, shredded chicken, and sharp cheddar beneath exactly six biscuits. Garlic-parsley butter brushed over the baked tops gives every serving a savory finish.
The recipe serves 8 and takes 70 minutes: 30 minutes of preparation and 40 minutes of cooking. The filling is built carefully on the stovetop, transferred to a buttered 13×9-inch dish, topped with six biscuits, and baked at 375°F before a 5-minute rest.
Broccoli Cheddar Biscuit Casserole Ingredients
For the base, use 4 tablespoons unsalted butter, 1 large finely diced yellow onion about 1 cup, 4 teaspoons minced garlic, ⅓ cup all-purpose flour, 2 cups chicken broth, and 2 cups room-temperature whole milk.
The filling needs 4 cups fresh broccoli florets, 2 cups finely shredded rotisserie chicken, 2½ cups freshly shredded sharp cheddar, 1 teaspoon kosher salt, 1 teaspoon black pepper, and ½ teaspoon cayenne. Top with one 6-count can of biscuits. Finish with 4 tablespoons melted butter, 1 teaspoon kosher salt, 2 teaspoons minced garlic, and 1 tablespoon minced parsley.
If you enjoy this recipe, you may also like Pepperoni Pizza Quesadillas.
How to Make Broccoli Cheddar Biscuit Casserole
- Preheat the oven to 375°F and lightly butter a 13×9-inch baking dish.
- Melt 4 tablespoons butter in a large skillet and cook the onion for 8 minutes.
- Add 4 teaspoons garlic for 1 minute, then whisk in ⅓ cup flour for 1 minute.
- Slowly whisk in 2 cups broth and 2 cups room-temperature milk.
- Add broccoli, salt, pepper, and cayenne; simmer uncovered for 12–15 minutes.
- Stir in chicken and cheddar until melted, then transfer to the dish.
- Arrange exactly six biscuits on top and bake for 15 minutes.
- Mix the garlic-parsley butter, brush it over the biscuits, and cool 5 minutes.
For storage details after serving, the USDA leftovers and food safety guidance.
Prepare the Oven and Baking Dish
Soften the Onion for Eight Minutes
Cook Garlic and Flour
Whisk in Broth and Room-Temperature Milk
Simmer Broccoli for Twelve to Fifteen Minutes
Add Chicken and Sharp Cheddar
Transfer and Count Six Biscuits
Bake for Fifteen Minutes
Mix the Garlic Butter Finish
Brush and Rest Five Minutes
Serve Eight Balanced Portions
Store and Reheat Safely
Conclusion
Preheat to 375°F and butter a 13×9-inch dish. Cook onion in 4 tablespoons butter for 8 minutes; add 4 teaspoons garlic for 1 minute and ⅓ cup flour for 1 minute. Slowly whisk in 2 cups broth and 2 cups milk. Add broccoli and seasonings, then simmer uncovered 12–15 minutes. Stir in 2 cups chicken and 2½ cups cheddar. Transfer, top with exactly six biscuits, and bake 15 minutes. Brush with the separate garlic-parsley butter and rest 5 minutes.
Frequently Asked Questions
- → How many biscuits go on the casserole?
Arrange exactly six biscuits over the filling.
- → How long should the broccoli simmer?
Simmer it uncovered for 12–15 minutes, until tender but not mushy.
- → What size baking dish should I use?
Use a lightly buttered 13×9-inch baking dish.
- → Can I assemble the filling ahead?
Yes. Refrigerate the prepared filling, but add the biscuits only when ready to bake.