If you’re looking for a side dish that’s comforting, cheesy, and irresistibly delicious, this Cheesy Broccoli Casserole is the one that steals the spotlight every single time. It’s the kind of recipe that gets shared, saved, clicked, and requested over and over again because it’s simple, creamy, and universally loved.
With tender broccoli, a velvety cheese sauce, and a golden crispy topping, this casserole works for weeknight dinners, potlucks, holidays, and everything in between. It’s easy to assemble, bakes beautifully, and pairs perfectly with just about any main dish. One bite, and you’ll understand why this casserole gets all the attention.
2. Ingredients
This casserole uses simple, reliable ingredients that deliver big flavor with minimal effort.
Ingredients List
Base
- 4 cups broccoli florets (fresh or frozen)
- 1 cup shredded cheddar cheese
- ½ cup shredded mozzarella (optional for extra creaminess)
- 1 can (10.5 oz) cream of mushroom or cream of chicken soup
- ½ cup sour cream or Greek yogurt
- ½ cup milk
- 2 tbsp butter
- ½ tsp garlic powder
- ½ tsp onion powder
- ½ tsp salt
- ¼ tsp black pepper
Topping
- 1 cup crushed Ritz crackers or breadcrumbs
- 2 tbsp melted butter
- ¼ cup Parmesan cheese (optional)
Key Ingredients
Broccoli: Provides texture, fiber, and a wholesome base.
Cheddar Cheese: The cheesy flavor hero—sharp cheddar works best.
Cream Soup: Creates richness and binds the casserole.
Sour Cream: Adds tanginess and keeps the texture creamy.
Ritz Cracker Topping: Gives that irresistible crunchy finish.
Optional Add-Ons / Variations
- Protein Boost: Add shredded chicken, ham, or bacon bits.
- Veggie Mix-In: Add cauliflower, peas, or sautéed mushrooms.
- Extra Cheesy: Add more cheddar or a layer of cheese under the topping.
- Healthier Twist: Use Greek yogurt and low-fat cheese.
- Gluten-Free: Use gluten-free crackers or breadcrumbs.
3. Step-by-Step Instructions
This casserole is easy to assemble and requires almost no cooking upfront, making it perfect for busy days or holiday prep.
Preparation Steps
- Preheat your oven to 350°F (175°C).
- Grease a baking dish with butter or nonstick spray.
- Steam or blanch broccoli for 2–3 minutes (skip this if using frozen).
- In a mixing bowl, whisk together the soup, sour cream, milk, and seasonings.
- Combine shredded cheeses in a separate bowl.
Cooking Steps
- Mix the casserole base:
- Add broccoli to the soup mixture.
- Add cheddar and mozzarella.
- Stir until everything is evenly coated.
- Transfer to baking dish: Spread mixture evenly.
- Prepare the topping:
- Mix crushed Ritz crackers (or breadcrumbs) with melted butter and Parmesan.
- Sprinkle evenly on top of the casserole.
- Bake:
- Bake for 25–30 minutes, until bubbly and golden brown.
- Broil for 1–2 minutes for an extra crispy top (optional).
- Rest & serve: Let it cool for 5 minutes before serving.
Serving Suggestions
- Serve as a hearty side with chicken, turkey, steak, or fish.
- Add rice, pasta, or quinoa to turn it into a full meal.
- Pair with a fresh salad to balance the richness.
- Serve at potlucks, holiday dinners, or gatherings—it’s always a hit.

4. Tips, Substitutions & Notes
These tips help get the perfect creamy, cheesy casserole every time.
Pro Tips for Better Results
- Slightly undercook broccoli before baking to avoid mushiness.
- Use sharp cheddar for maximum flavor.
- Don’t skip the butter in the topping—it helps with crispness.
- For a thicker casserole, reduce milk slightly.
Common Mistakes to Avoid
- Adding too much liquid (can make the casserole watery).
- Overcooking broccoli before baking.
- Not draining frozen broccoli fully.
Ingredient Substitutions
- Cream of mushroom → cream of chicken or cheddar soup
- Sour cream → Greek yogurt
- Cheddar → any melting cheese (Monterey Jack, Colby, gouda)
- Ritz crackers → breadcrumbs, panko, or crushed cornflakes
Texture, Flavor & Health Variations
- Add chili flakes for a spicy kick.
- Use smoked paprika for a deep, smoky flavor.
- Add chopped spinach or kale for extra greens.
- Substitute brown rice or quinoa for a full meal casserole.
5. Storage & Reheating
This casserole reheats beautifully, making it great for leftovers or meal prep.
Refrigeration
Store in an airtight container for 3–4 days.
Add a splash of milk before reheating if it thickens.
Freezing
Freeze unbaked or baked casserole for up to 2 months.
Wrap well to avoid freezer burn.
Reheating
- Oven: Reheat at 325°F for 15–20 minutes.
- Microwave: Heat in 30–60 second intervals.
- Air Fryer: 3–5 minutes at 350°F for a crispy topping.
6. Nutrition (Approximate)
(per serving)
- Calories: 250–350
- Protein: ~10g
- Carbs: ~15–20g
- Fat: ~18–25g
- Fiber: ~3g
- Sodium: Moderate to high (depends on soup/cheese)
7. Conclusion
This Cheesy Broccoli Casserole is everything a comforting side dish should be—rich, creamy, cheesy, and topped with a satisfying crunch. It’s easy to prepare, crowd-pleasing, and perfect for weeknight dinners or holiday spreads. Once you try it, you’ll understand exactly why this recipe gets all the clicks!