Keto Broccoli Cauliflower Au Gratin – Easy Low Carb Casserole Dinner

Dinner just got a whole lot easier—and a lot more delicious. This creamy, cheesy keto casserole transforms simple veggies into the kind of comfort food you’ll actually crave all week long. Packed with flavor and incredibly satisfying, it’s the perfect solution when you want something hearty without the carbs.

Keto Broccoli Cauliflower Au Gratin – Easy Low Carb Casserole Dinner
This dish stands out among Low Carb Casseroles thanks to its rich cheese sauce and savory sausage, making it one of the most satisfying Low Carb Dinner Recipes you can add to your rotation. Whether you’re planning ahead or cooking on the fly, it doubles as one of the most reliable Keto Meal Prep options—easy to portion, store, and reheat.

The Best Keto Broccoli Cauliflower Bake – Creamy Low Carb Side Dish
Looking for versatile Low Carb Side Dishes or a complete main course? This recipe does both effortlessly. It fits perfectly into your list of go-to Keto Side Dishes while also standing strong as one of the best Keto Recipes Dinner ideas for busy weeknights.

Even better, it supports balanced eating goals, making it ideal for Bariatric Recipes and everyday Health Dinner Recipes. With tender broccoli and cauliflower baked in a creamy, cheesy sauce, every bite feels indulgent while staying aligned with your low-carb lifestyle.

Keto Broccoli Cauliflower Au Gratin – Low Carb Meal Prep Favorite
From cozy family dinners to weekly meal prep sessions, this dish proves that Low Carb Sides don’t have to be boring—they can be rich, comforting, and absolutely irresistible.


Keto Broccoli Cauliflower Au Gratin – Easy Low Carb Casserole Dinner

Keto Broccoli Cauliflower Au Gratin – Easy Low Carb Casserole Dinner

Ingredients

Vegetables

  • 2 cups cauliflower florets
  • 2 cups broccoli florets, lightly steamed

Sausage

  • 1 lb smoked sausage, sliced

Cheese Sauce

  • 2 tbsp butter
  • 1 medium onion, diced
  • 2 cloves garlic, minced
  • 8 oz cream cheese, softened
  • 1 cup heavy whipping cream
  • 1 cup shredded cheddar cheese

Instructions

  1. Preheat oven to 350°F (175°C).
  2. Cook sliced sausage in a large skillet over medium-high heat for 5–7 minutes until browned.
  3. Add butter to the skillet and sauté onion for 3–4 minutes until softened.
  4. Stir in garlic and cook briefly until fragrant.
  5. Add cream cheese and stir until melted, then slowly whisk in heavy cream for 3–5 minutes.
  6. Mix in shredded cheddar until smooth and creamy.
  7. Combine broccoli, cauliflower, and sausage in a large bowl. Pour sauce over and mix well.
  8. Transfer to baking dish and bake for 15–20 minutes until bubbly and golden.

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