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Diced cauliflower, mushrooms, & brown rice mixed with a cheese gravy baked into a casserole dish.

Cauliflower Rice Mushroom Casserole

A must to add to your new holiday side dishes!  Layers of cauliflower, mushrooms, and brown rice mixed with a cheese gravy and topped with a crunch.
Prep Time 30 mins
Cook Time 20 mins
Total Time 50 mins
Course Main Course
Cuisine American
Servings 8


  • 2 Small Heads Cauliflower
  • 8 Ounces Baby Bella Mushrooms
  • 1 Cup Cooked Brown Rice
  • 2 Tablespoons Light Butter
  • 2 Cloves Garlic
  • 1 Shallot
  • 1 Teaspoon Salt
  • 1 Teaspoon Pepper
  • 2 Tablespoons White Whole Wheat Flour
  • 1 ½ Cups 2% Milk
  • ¼ Teaspoon Cayenne Pepper
  • 1 Teaspoon Oregano
  • ½ Cup Breadcrumbs
  • ½ Cup Shredded Parmesan Cheese
  • ½ Cup Shredded Gruyere cheese
  • 1 Tablespoon Parsley


  • Preheat oven to 400°.
  • Clean cauliflower and cut the center bottom to remove the stem and leaf parts.
  • Dice cauliflower into chunks and put into a large pot. Fill pot with water to cover the cauliflower.
  • Top with fresh cracked salt and pepper.
  • Cover pot with lid and boil cauliflower for about 25 minutes until tender.
  • Drain in a colander.
  • Cook rice according to package instructions.
  • Mince garlic and set aside.
  • Mince shallot and set aside.
  • Add butter to skillet over medium heat, then add shallots.
  • Sauté for a few minutes, then add garlic. Sauté for another minute.
  • Add flour and whisk for 1 minute.
  • Slowly pour in milk and whisk until no clumps. Turn heat to low to let sauce thicken.
  • Add in spices and gruyere cheese until melted.
  • In a large bowl, mix cooked cauliflower, cooked rice, mushrooms, and cheese sauce. Mix well.
  • Spray 9x9 baking dish with cooking spray and pour in cauliflower mixture into dish. Spread to even layer.
  • Top with breadcrumbs and parmesan cheese
  • Cook for 20 minutes.
  • Garnish with fresh parsley.


Nutrition is based on the Weight Watchers Freestyle Program guidelines. Nutrition calculated using Weight Watchers calculator.
NUTRITION: Serves 8- (7 SmartPoints Per Serving) CALORIES: 185 FAT: 9.7 SATURATED FAT: 5.5 CARBS: 15 FIBER: 0.7 SUGARS: 3 PROTEIN: 9.3