Broccoli au Gratin is so quick and easy, no one will suspect it’s low-carb!

This recipe features tender bite-sized pieces of broccoli baked in a creamy, cheesy sauce with just the right amount of crispy, seasoned breadcrumbs on top!

cooked Broccoli au Gratin on a plate

Easy Cheesy Broccoli!

  • Healthy broccoli is a keto lover’s dream veggie! In this casserole recipe, it stays nice and tender and soaks up the savory sauce. Make it a main dish and add shredded chicken, rotisserie chicken, turkey, or diced ham.
  • This recipe features “gratin” which is a browned crispy, crunchy topping. This one uses keto-friendly or low carb bread crumbs and parmesan cheese. Easy peasy.
  • Baked broccoli and cheese is the perfect casserole side dish to serve with chicken, beef, or pork, or it stands alone as a hearty low-carb vegetarian dish.
broccoli , cream , cream cheese , cheese , onion powder, bread , butter and salt and pepper with labels to make Broccoli au Gratin

Low Carb Ingredients

Broccoli – Choose fresh broccoli florets and cut them to the same size. Use frozen broccoli straight from the bag if time is short. Just add a few minutes to the baking time. Make a new twist by using half broccoli and half cauliflower or by mixing in cauliflower rice for an extra hearty meal.

Sauce – A generous amount of cream cheese, cream, and cheddar cheese make this sauce super creamy and rich. Use full-fat ingredients for the best flavor.

Topping – Super easy to make, keep extra of this topping mix in the pantry for future recipes! Add extra seasonings to the topping for a punch of flavor; try Italian, garlic and herb, or a spicy taco.

Pro Tips:

Set cream cheese out about 20 minutes before starting so it can come to room temperature. This makes it easier to stir in Step 6.

Add other cheeses like mozzarella, gruyere, brie, or a Mexican cheese blend as substitutes for cheddar.

process of adding ingredients together to make Broccoli au Gratin

How To Make Broccoli Au Gratin

  1. Make keto topping and set aside (as per the recipe below).
  2. Steam broccoli in a skillet with water, drain, and cover to keep warm.
  3. Bring heavy cream and seasonings to a boil. Reduce to a simmer. Stir in cream cheese until smooth and remove from heat. Stir in shredded cheddar cheese until the sauce is smooth.
  4. Spread broccoli florets in a casserole dish and pour cheese sauce over the broccoli. Sprinkle with breadcrumbs and bake until browned and bubbly.

Pro Tip:

Let the casserole set for about 5 minutes before serving. This will give individual portions shape.

What to Serve with Broccoli and Cheese?

As a hearty side dish, serve broccoli and cheese au gratin with fried chicken, or a juicy, low-carb meatloaf. Add a tangy cucumber salad or a fresh tomato salad.

taking a spoonfull of Broccoli au Gratin out of the dish

Storage Solutions

Store broccoli au gratin for up to 5 days covered in the refrigerator. Reheat portions in the microwave or sprinkle fresh breadcrumbs on the top and place it under the broiler. Freeze portions for up to 4 weeks, or better yet, simply make it fresh!

Tasty Broccoli Recipes

cooked Broccoli au Gratin on a plate
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Broccoli Au Gratin

A deliciously cheesy broccoli casserole with crispy low carb topping.
Prep Time 20 minutes
Cook Time 20 minutes
Total Time 40 minutes
Servings 6 servings
Author Holly



  • 1 slice keto bread
  • 1 tablespoon butter melted
  • ¼ cup parmesan cheese shredded


  • 3 ½ cups broccoli florets approx. one large head
  • 1 cup water


  • 2 ounces cream cheese cubed
  • 1 cup heavy cream
  • ½ teaspoon onion powder
  • 1 ½ cup cheddar cheese shredded
  • ¼ teaspoon salt or more to taste
  • teaspoon pepper


  • Preheat oven to 375°F
  • Blend keto bread in a food processor until it becomes crumbs. Mix with melted butter and parmesan cheese. Set aside.
  • Wash broccoli and place it in a non-stick skillet. Add 1 cup water and bring to a simmer over medium heat.
  • Cover broccoli and steam 4-6 minutes. Remove & place in a bowl. Cover to keep warm.
  • In a medium saucepan, heat heavy cream, onion powder, salt and pepper to boiling. Reduce heat and let simmer 2 minutes.
  • Stir in cream cheese until melted. Remove from heat and stir in cheddar cheese.
  • Spread broccoli evenly in the bottom of a 2 qt baking dish. Pour cheese sauce over the broccoli. Sprinkle with bread crumb mixture.
  • Bake for 20-25 minutes until top is golden and the cheese is bubbly.


Broccoli au gratin will keep for up to 5 days in the refrigerator.
Portions can be frozen for up to 4 weeks.
5 from 3 votes↑ Click stars to rate now!
Or to leave a comment, click here!

Nutrition Information

Calories: 345kcal | Carbohydrates: 7g | Protein: 12g | Fat: 31g | Saturated Fat: 18g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 0.1g | Cholesterol: 92mg | Sodium: 448mg | Potassium: 246mg | Fiber: 2g | Sugar: 3g | Vitamin A: 1415IU | Vitamin C: 48mg | Calcium: 312mg | Iron: 1mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Course Side Dish
Cuisine American

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About the author

At Easy Low Carb® we believe that every meal should be full of big bold flavor! From amazing main dishes and simple sides to the best party snacks, reducing carbs doesn’t mean giving up your favorites!
See more posts by Holly

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