Stuffed Baby Portabella Mushrooms

Stuffed Baby Portabella Mushrooms

  • 20 Minutes Prep 40 Minutes Total
  • 26 Servings
Party with portabellas! You'll love them because they can be made ahead; party goers will find them delicious.

Ingredient List

  • 2 packages (5 oz each) fresh baby portabella mushrooms or large regular white mushrooms
  • 2 tablespoons butter or margarine
  • 3/4 cup chopped red onion
  • 1 cup frozen chopped broccoli, thawed, drained
  • 1/4 cup Progresso™ garlic & herb dry bread crumbs
  • 1 package (5.2 oz) Boursin® cheese with garlic and herbs
  • 1/2 teaspoon dried basil leaves
  • 1/2 teaspoon dried oregano leaves
  • 1/2 teaspoon garlic salt
  • 1/2 teaspoon pepper
  • 1 tablespoon chopped roasted red bell peppers (from a jar)


  1. Heat oven to 350°F. Carefully remove stems from mushrooms. Chop enough stems to measure 1/2 cup.
  2. In 10-inch skillet, melt butter over medium heat. Cook onion and broccoli in butter 2 minutes, stirring occasionally. Stir in mushroom stems. Cook about 2 minutes, stirring occasionally, until broccoli is crisp-tender. Cool slightly. Stir in bread crumbs, cheese, basil, oregano, garlic salt and pepper.
  3. Spoon vegetable mixture evenly into mushroom caps, mounding slightly. Place stuffed mushrooms in ungreased 15x10-inch pan with sides. Garnish each with bell pepper pieces.
  4. Bake uncovered 12 to 15 minutes or until filling is light golden brown.


  • Prepare mushrooms through step 3; store tightly covered in refrigerator up to 24 hours before baking and serving.
  • Use a small ice-cream scoop or the large end of a melon ball cutter to scoop the vegetable mixture evenly into the mushroom caps.