Portabella mushrooms
Portabella mushrooms

DESCRIPTION: Portabellas are fully-grown brown mushrooms, with a large, light tan cap. Portabellas are the largest of all domestic mushrooms.

HOW TO PURCHASE: Can be purchased in bulk, cello-wrapped trays, and sliced.

TASTE PROFILE: Since they are grown to a large size, Portabella mushrooms lose some moisture, giving them a meaty texture and earthy taste.

HOW TO SERVE: Can be grilled, baked, or deep-fried, are great as an appetizer, side dish or entre. Because of their natural meatiness, Portabella mushrooms are great meat substitutes with no fat, sodium, or cholesterol.

STORAGE: Keep Portabella mushrooms refrigerated in a paper bag for up to 7 days.


(100 g)
Cooper Selenium Potassium Phosphorus Iron Zinc Magnesium
Portabella20%16% 14%13%3%4% 3%

(100 g)
Riboflavin Niacin Pantocenic Acid Vitamin B6 Thiamin Folate(4) Vitamin D
Portabella28%23% 15%5%5%5% NA

Mushroom Fibre
per 100 g serving

A Middle Eastern flavour with the addition of couscous, coriander and cumin updates the familiar stuffed mushrooms. Assemble the filling one to two days ahead then fill the mushrooms just before serving.

Preparation Time: 15 Minutes

Cooking Time: 15 Minutes

Servings: 12 appetizers


  • 12 large Ontario White Mushrooms, about 3 inches (8 cm)
  • 1 tsp (5 mL) vegetable oil
  • Half small Ontario Onion, finely chopped
  • 1/4 cup (50 mL) finely chopped Ontario Carrot
  • 1 clove Ontario Garlic, minced
  • 1/2 tsp (2 mL) ground cumin
  • 1/4 tsp (1mL) ground coriander
  • 1/2 cup (125 mL) uncooked quick couscous
  • 3/4 cup (175 mL) vegetable broth
  • 2 tbsp (25 mL) currants
  • 2 tbsp (25 mL) finely chopped fresh parsley
  • 2 tbsp (25 mL) finely chopped fresh mint


Cut stems from mushrooms; trim inside edge of cap to enlarge stuffing area. Set caps aside. Finely chop mushroom stems. In large nonstick skillet, heat oil over medium heat. Add mushroom stems, onion, carrot and garlic; cook, stirring often, for 5 minutes or until softened. Add cumin, coriander, then couscous; stir in stock and currants. Cover and bring to boil; remove from heat and let stand for 5 minutes. Fluff with fork. Add parsley and mint. Fill mushroom caps with couscous mixture. Bake in 400F (200C) oven for 12 to 15 minutes or until mushrooms are tender.

Tip for making room in mushrooms:

Invert the cleaned mushroom and pull off the stem. Use the small end of a sharp melon baller to scoop excess mushroom flesh from the underside of the cap. The flesh that is removed can be chopped and added to the stuffing mixture.