Chicken and Orzo Stuffed Portobello Mushrooms


Quite some time ago I tried an incredible stuffed mushroom dish at an Italian restaurant. This version takes advantage of precooked chicken for faster prep. There really is no substitute for the demi glace, although homemade is an option, I purchased mine at a local kitchen store. The quantity below will full two large mushroom caps or four medium mushroom caps.

Prep Time:
15 mins
Cook Time:
25 mins
Total Time:
40 mins
2 servings



  • 1 tablespoon butter

  • ½ cup diced red bell pepper

  • 2 cloves garlic, minced

  • ½ cup uncooked orzo pasta

  • 2 ½ cups chicken broth, or as needed

  • 1 tablespoon prepared demi glace

  • ½ teaspoon Italian seasoning

  • ½ teaspoon salt

  • ¼ teaspoon ground black pepper

  • 2 cups chopped cooked chicken

  • 1 cup chopped fresh spinach

  • 2 portobello mushroom caps, gills removed

  • 4 slices smoked mozzarella


  1. Melt butter in a skillet over medium high heat and cook bell pepper until tender, 3 to 4 minutes. Add garlic during the last 30 seconds and sauté until fragrant. Stir in orzo and add 1 cup chicken broth, demi glace, Italian seasoning, salt, pepper, and chicken. Cook and stir for about 5 minutes. Add 1/2 cup chicken broth. Cook and stir until liquid is absorbed and add the next 1/2 cup chicken broth, about 5 minutes. Repeat until orzo pasta is tender - you may not need all the chicken broth. Add spinach during the last minute of cooking.

  2. Set an oven rack about 6 inches from the heat source and preheat the oven's broiler.

  3. Place mushroom caps on a rimmed baking sheet. Add equal amounts of orzo filling to the mushroom caps. Top with smoked mozzarella cheese and broil until golden brown and cheese is melted, 3 to 5 minutes.

Nutrition Facts (per serving)

685 Calories
27g Fat
48g Carbs
58g Protein
Nutrition Facts
Servings Per Recipe 2
Calories 685
% Daily Value *
Total Fat 27g 35%
Saturated Fat 12g 61%
Cholesterol 150mg 50%
Sodium 2519mg 110%
Total Carbohydrate 48g 18%
Dietary Fiber 3g 12%
Total Sugars 7g
Protein 58g
Vitamin C 55mg 276%
Calcium 62mg 5%
Iron 4mg 22%
Potassium 648mg 14%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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