Keto Oven Roasted Broccoli and Cheese: Easy Low-Carb Side Dish

By Stephanie Manley Updated 05/23/25

When you’re following a ketogenic or low-carb lifestyle, finding satisfying side dishes that deliver on both flavor and nutrition can be challenging. This oven-roasted broccoli and cheese solves that problem beautifully, transforming simple ingredients into a comforting dish that rivals any traditional cheese sauce version. The beauty lies in its simplicity: tender-crisp broccoli florets topped with melted cheddar cheese, all prepared on a single sheet pan.

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What makes this recipe truly special is how it captures all the satisfaction of classic broccoli with cheese sauce while keeping carbs to an absolute minimum. You get a pure, concentrated flavor without any hidden carbohydrates by skipping the flour-thickened sauce and letting the cheese melt directly over the roasted broccoli. It’s proof that sometimes, the most straightforward approach delivers the most delicious results.

overhead view of Keto oven roasted broccoli and cheese on a platter

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Why This Recipe Works

The magic happens when the broccoli roasts in the oven’s dry heat, concentrating its natural flavors while maintaining the perfect tender-crisp texture. Unlike steaming or boiling, roasting caramelizes the edges slightly, adding depth and preventing the watery texture that often plagues broccoli dishes.

The cheese melts directly onto the hot broccoli, creating pockets of gooey goodness that cling to every floret. This direct application method eliminates the need for flour-based cheese sauces, keeping the dish keto-friendly while maximizing flavor impact.

Ingredients

  • Fresh broccoli florets – Provides a nutritious, fiber-rich base with minimal carbs
  • Salt – Enhances natural flavors and helps draw out moisture for better roasting
  • Garlic powder – Adds aromatic depth and savory complexity
  • Shredded cheddar cheese – Creates the rich, melty topping that makes this dish irresistible
ingredients for keto oven roasted broccoli and cheese

Ingredient Notes

You could also make this recipe with frozen broccoli. Costco sells frozen broccoli in large bags, which is perfect for a quick and easy side dish.

If you use frozen broccoli, you will not need to steam it before you prepare this dish. Frozen broccoli is already lightly cooked. When using frozen broccoli, pour out the amount you need onto a paper towel and let the ice melt so the excess water can drain off the frozen broccoli before putting it onto the sheet pan.

You can use any seasoning of your choice instead of the garlic powder.

How to Bake Broccoli and Cheese

  1. Steam broccoli lightly but not cooked through.
  2. Place broccoli on a baking sheet lined with either parchment paper or foil.
  3. Season broccoli with salt and garlic powder.
  4. Sprinkle the cheese on top of the broccoli.
  5. Bake at 350 degrees for 15 minutes or until the cheese melts.
lightly steamed broccoli florets on a baking sheet
broccoli topped with cheese on a baking sheet
oven roasted broccoli and cheese on a platter
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Keto Oven Roasted Broccoli and Cheese – Low Carb Side

Simple keto broccoli and cheese made on one sheet pan! Fresh broccoli roasted with melted cheddar cheese – perfect low-carb side dish in 20 minutes.
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5 from 7 votes
Servings : 4
Prep Time10 minutes
Cook Time15 minutes
Total Time25 minutes

Ingredients
 

  • 1 1/2 pounds broccoli florets
  • 1/2 teaspoon salt
  • 1/2 teaspoon garlic powder
  • 1 cup shredded cheddar cheese

Instructions

  1. Preheat oven to 350 degrees.
  2. Steam broccoli lightly by placing it in a large bowl with a couple of tablespoons of water.  Microwave for about 4 minutes. OR you can steam with your Instant Pot for about 2 minutes. The broccoli does not need to have cooked all of the way through. 
  3. Place broccoli on a baking sheet that has been lined with either parchment paper or foil.  Bunch up the broccoli close together. This way the cheese will stay on the broccoli and not the pan. 
  4. Season broccoli with salt and garlic powder.
  5. Sprinkle cheese on top of broccoli.
  6. Bake for about 15 minutes or until the cheese melts.  

Video

Nutrition

Calories: 172kcal | Carbohydrates: 11g | Protein: 11g | Fat: 9g | Saturated Fat: 6g | Cholesterol: 29mg | Sodium: 522mg | Potassium: 565mg | Fiber: 4g | Sugar: 3g | Vitamin A: 1345IU | Vitamin C: 151.7mg | Calcium: 284mg | Iron: 1.4mg
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Course: Side Dish
Cuisine: American

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Recipe Rating




8 Comments

  1. 5 stars
    This recipe is awesome! It’s like broccoli nachos! Definitely make a staple recipe!

  2. 5 stars
    Quick and easy to make! My family loved this way to make broccoli. We sprinkled on some Cayenne pepper for a little spice.