Cheesy Broccoli Potato Casserole

If you love easy comfort food, this Cheesy Broccoli Potato Casserole is a recipe worth saving. It combines soft potatoes, fresh broccoli, creamy sour cream, and plenty of melted cheddar cheese in one delicious baked dish.

The potatoes make it filling, while broccoli adds color and a fresh vegetable flavor. Sour cream brings everything together, and the cheddar creates a rich, cheesy topping that turns lightly golden in the oven.

This casserole is easy to prepare with everyday ingredients. You can serve it for breakfast, brunch, or dinner. It also makes a great side dish for holidays, family meals, and potlucks.

Why You Will Love This Recipe

• Easy preparation: You only need a few simple ingredients and one mixing bowl.
• Saves time: Thawed diced hash brown potatoes make preparation much faster.
• No cheese sauce needed: Sour cream and cheddar create a creamy filling without extra cooking.
• Great for different meals: Serve it with breakfast, lunch, or dinner.
• Easy to customize: Add cooked chicken, bacon, or your favorite cheese.
• Make-ahead friendly: Assemble it in advance and bake when needed.
• Perfect for sharing: It makes enough for a family meal or small gathering.

Ingredients You Will Need

Each ingredient adds something special to this comforting casserole.

Diced Hash Brown Potatoes: These form the hearty base of the dish. Thawed diced potatoes are convenient because you do not need to peel, boil, or chop fresh potatoes.

Fresh Broccoli: Broccoli adds color, texture, and a mild vegetable flavor. Cut it into small, evenly sized florets so it cooks more consistently.

Extra-Sharp Cheddar Cheese: Cheddar gives the casserole its rich, savory flavor. Some goes into the filling, while the rest creates a melted cheese topping.

Sour Cream: This makes the filling creamy and helps hold the potatoes and broccoli together. Its slightly tangy taste also balances the richness of the cheese.

Onion: Finely diced onion adds a gentle savory flavor that works well with the other ingredients.

Salt and Black Pepper: These basic seasonings bring out the natural flavors of the potatoes, broccoli, and cheese.

How to Make Cheesy Broccoli Potato Casserole

This recipe takes only a few minutes to assemble. The oven does most of the work.

Step 1: Preheat the Oven

Preheat your oven to 375°F (190°C). Lightly grease a 13 × 9-inch baking dish with butter or nonstick cooking spray to prevent sticking.

Step 2: Prepare the Cheese

Measure the cheddar cheese and set aside ½ cup for the topping. Keep the remaining cheese for the casserole filling.

Step 3: Combine the Potatoes and Broccoli

Place the thawed diced hash brown potatoes in a large mixing bowl. Add the fresh broccoli florets and gently mix them together.

Step 4: Add the Creamy Ingredients

Add the sour cream, diced onion, salt, black pepper, and the remaining cheddar cheese. Stir until the potatoes and broccoli are evenly coated.

Step 5: Transfer to the Baking Dish

Spoon the mixture into your prepared baking dish. Spread it evenly so the casserole cooks at a similar rate throughout.

Step 6: Add the Cheese Topping

Sprinkle the reserved cheddar cheese over the top. Try to cover the surface evenly for a cheesy finish.

Step 7: Bake Covered

Cover the dish with aluminum foil or an oven-safe lid. Bake for approximately 45 minutes. This helps the potatoes and broccoli cook while keeping the filling moist.

Step 8: Bake Uncovered

Remove the foil carefully and return the dish to the oven. Bake for another 10–15 minutes, or until the cheese has melted and the top begins to turn golden.

Step 9: Check for Doneness

Pierce a potato piece with a fork. It should be tender and easy to cut through. The casserole should also be hot in the center.

If the potatoes are still firm, continue baking for a few more minutes.

Step 10: Rest and Serve

Remove the casserole from the oven and let it rest for 5–10 minutes. This helps the creamy filling settle and makes serving easier.

Spoon into plates and enjoy while warm.

Tips for the Best Casserole

Thaw the Potatoes First: Frozen hash browns can release extra water while baking. Thaw them completely and drain away any excess moisture before mixing.

Cut Broccoli Into Small Pieces: Smaller florets cook more evenly and are easier to serve with the potatoes.

Use Freshly Shredded Cheese: Cheese shredded from a block often melts more smoothly than some pre-shredded varieties.

Do Not Add Too Much Liquid: Sour cream provides enough moisture for the filling. Adding extra milk or water may make the casserole too soft.

Check Before Removing From the Oven: Baking times can vary depending on the oven and the temperature of your ingredients. Make sure the potatoes are tender and the center is thoroughly hot.

Easy Recipe Variations

Add Cooked Chicken: Mix shredded or diced cooked chicken into the filling to turn this side dish into a more complete main meal.

Include Crispy Bacon: Stir cooked bacon pieces into the mixture or sprinkle them over the top for a smoky flavor. Reduce the added salt if needed.

Try Different Cheeses: Monterey Jack, Colby Jack, mozzarella, or mild cheddar can be used instead of extra-sharp cheddar. You can also mix two types of cheese.

Use Frozen Broccoli: Frozen broccoli works too. Thaw it completely, drain it well, and remove excess moisture before adding it to the bowl.

Add More Seasoning: Garlic powder, paprika, onion powder, or dried herbs can give the casserole extra flavor. Start with a small amount and adjust to taste.

What to Serve With Broccoli Potato Casserole

This cheesy dish works with many meals.

• For breakfast: Serve with scrambled eggs, fried eggs, or toast.
• For brunch: Pair it with fresh fruit, breakfast meats, and a simple salad.
• For dinner: Enjoy it alongside roasted chicken, grilled beef, turkey, or baked fish.
• For holidays: Add it to a meal with roasted meats and other vegetable side dishes.

A fresh green salad is also a nice choice because its crisp texture balances the creamy casserole.

Make-Ahead Instructions

You can prepare this casserole before you need it.

Mix the ingredients, transfer them to the greased baking dish, and add the reserved cheddar on top. Cover tightly and refrigerate until ready to bake.

When baking straight from the refrigerator, allow extra time because the casserole will be cold. Keep it covered during most of the cooking time, then uncover it near the end.

Check the center to make sure it is completely hot before serving. For the best texture, avoid leaving the prepared casserole refrigerated for more than 24 hours before baking.

Storage and Reheating

Refrigerating Leftovers: Allow the casserole to cool slightly, then place leftovers in a covered airtight container. Refrigerate within two hours of cooking and enjoy within 3–4 days.

Reheating in the Microwave: Place an individual serving on a microwave-safe plate. Heat until steaming hot throughout, checking and stirring as needed.

Reheating in the Oven: Place the leftovers in an oven-safe dish and cover with foil to prevent the cheese from drying out. Heat at 350°F (175°C) until hot in the center.

Freezing: You can freeze cooked portions in airtight, freezer-safe containers. For best quality, use within 2–3 months. Thaw overnight in the refrigerator before reheating. The texture of sour cream may change slightly after freezing.

Frequently Asked Questions

1. Can I Use Frozen Hash Brown Potatoes?

Yes. Frozen diced hash browns are a convenient option. Thaw them completely and drain any extra liquid before mixing them with the other ingredients.

2. Do I Need to Cook the Broccoli Before Baking?

No. Small fresh broccoli florets can go directly into the casserole. They soften during baking. If you prefer very tender broccoli, you can steam it briefly before adding it.

3. Can I Make This Casserole Without Sour Cream?

Yes. Plain Greek yogurt can be used as an alternative, although it may give the casserole a slightly tangier flavor and a different texture. Use plain, unsweetened yogurt.

4. Can I Prepare It the Night Before?

Yes. Assemble the casserole, cover it tightly, and refrigerate it. Bake it the next day, allowing extra time for the cold ingredients to heat through.

5. How Do I Stop the Casserole From Becoming Watery?

Thaw and drain the potatoes properly. If using frozen broccoli, remove as much excess moisture as possible. Also, avoid adding extra liquid to the sour cream mixture.

6. Can I Add Meat to This Recipe?

Absolutely. Cooked shredded chicken, diced turkey, or cooked bacon can be added before baking. Make sure any meat is fully cooked before mixing it into the casserole.

7. How Do I Know When the Casserole Is Ready?

The potatoes should be fork-tender, the broccoli should be softened, and the center should be hot. The cheese on top should be melted and lightly golden.

8. Can I Use Mild Cheddar Instead of Extra-Sharp Cheddar?

Yes. Mild or medium cheddar works well. Extra-sharp cheddar simply gives the casserole a stronger cheese flavor.

Cheesy Broccoli Potato Casserole Recipe Card

Prep Time: 10 minutes
Cook Time: 55–60 minutes
Resting Time: 5–10 minutes
Total Time: Approximately 1 hour 5–10 minutes
Servings: 8
Course: Breakfast, Brunch, Side Dish
Cuisine: American
Difficulty: Easy
Oven Temperature: 375°F (190°C)

Ingredients

• 4 cups diced hash brown potatoes, thawed
• 4 cups fresh broccoli florets
• 1½ cups shredded extra-sharp cheddar cheese
• 2 cups sour cream
• ¼ cup finely diced onion
• 1½ teaspoons salt
• ½ teaspoon freshly ground black pepper
• ½ cup shredded cheddar cheese, reserved for topping

Instructions

1. Preheat the oven to 375°F (190°C) and grease a 13 × 9-inch baking dish.
2. Set aside ½ cup of cheddar cheese for the topping.
3. Add the thawed potatoes and broccoli florets to a large mixing bowl.
4. Mix in the sour cream, onion, salt, pepper, and remaining cheddar.
5. Spread the mixture evenly in the prepared baking dish.
6. Sprinkle the reserved cheddar over the top.
7. Cover with foil and bake for 45 minutes.
8. Remove the foil and bake for another 10–15 minutes until the cheese melts and turns lightly golden.
9. Check that the potatoes are tender and the center is hot.
10. Let the casserole rest for 5–10 minutes before serving.

Estimated Nutrition Per Serving

Nutrition values are estimates based on 8 servings. Actual amounts will vary depending on the brands of potatoes, sour cream, and cheese used.

Final Thoughts

This Cheesy Broccoli Potato Casserole is an easy, comforting dish that brings together tender potatoes, fresh broccoli, creamy sour cream, and melted cheddar. It requires simple ingredients and very little preparation, making it a great choice for busy days and family meals.

Serve it as a breakfast casserole, a hearty side dish, or a warm addition to your holiday table. You can also customize it with chicken, bacon, or different cheeses to make it your own.