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cheesy cauliflower in a baking dish with a serving spoon

The Easiest Cheesy Cauliflower Bake

A super simple side dish, this Cheesy Cauliflower Bake is slathered in mustard and mayonnaise, covered in cheese, then baked until hot and bubbly!
Course Side Dish
Cuisine American
Prep Time 5 minutes
Cook Time 55 minutes
Total Time 1 hour
Servings 6 servings
Calories 175kcal



  • Preheat oven to 375 degrees.
  • Place the cauliflower in a rectangular baking dish (about 9x13 or 8x11).
  • Mix the mustard and mayonnaise together in a bowl and spread on top of the cauliflower. Use your hands to mix it together well.
  • Sprinkle cheese on top and drizzle about 1 tbsp. of olive oil over the cheese.
  • Bake, covered, for 50-60 minutes until cheese is melted and lightly browned, and cauliflower can be pierced with a fork. You can remove the cover during the last 10-15 minutes to help the cheese brown.



  1. If the cheese isn't browned enough, pop it under the broiler for a minute or two to crisp it up;
  2. I don't recommend using grainy Dijon mustard as the texture is not great in the cauliflower bake;
  3. Remove the cover during the last 10-15 minutes of baking to brown the cheese.


Serving: 0.5cup | Calories: 175kcal | Carbohydrates: 5g | Protein: 9g | Fat: 13g | Saturated Fat: 6g | Cholesterol: 31mg | Sodium: 305mg | Potassium: 322mg | Fiber: 2g | Sugar: 2g | Vitamin A: 285IU | Vitamin C: 46.2mg | Calcium: 228mg | Iron: 0.7mg