Low Carb Tuna and ' Rice' Casserole

Total Time
Prep 15 mins
Cook 35 mins

This "rice" used in this recipe can be used as a substitute for rice in any recipe.

Ingredients Nutrition


  1. Put cauliflower in a 2 1/2 quart casserole with a lid.
  2. Add 3 tablespoons of water, cover and microwave on HIGH 8-10 minutes until just tender, stirring every couple minutes (do not overcook); stir in 1 tablespoon butter.
  3. Meanwhile, sauté the celery in remaining tablespoon of butter until very tender.
  4. In medium microwaveable bowl, mix 6 ounces of the cheese and cream.
  5. Microwave a 2 minutes to melt the cheese; stir until well blended.
  6. Whisk in mayonnaise, seasonings and dry onion.
  7. Stir tuna and mushrooms into cauliflower; add cheese sauce and mix well.
  8. Can be covered and chilled at this point and then baked later.
  9. Cover and bake at 350ºF for 20 minutes; uncover, top with remaining cheese and bake another 10-15 minutes until bubbly; add an extra 5-10 minutes to first baking time if chilled.
Most Helpful

5 5

I used fresh onion and mushrooms and added the flakes. I needed to use the onions and mushrooms up. Other than made as written. It was fantastic! The whole family loved it.

4 5

I added green onions to this recipe instead of onion powder. Turned out great. Husband loved it.

5 5

Delicious, low carb recipe! It didn't have the celery, and I thought there was sufficient cheese in the six ounces mixed with the heavy cream and mayo, so I didn't top the casserole with the remaining two ounces of cheese.