Onion-Stuffed Portobellos Recipe

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These stuffed mushrooms make a pretty visual with burgundy-colored onions and deep green spinach. To serve as appetizers, use small baby Portobello mushrooms and serve over shredded lettuce.—Marie Rizzio, Interlochen, Michigan
TOTAL TIME: Prep: 25 min. Cook: 15 min.
MAKES:4 servings
TOTAL TIME: Prep: 25 min. Cook: 15 min.
MAKES: 4 servings


  • 1 large onion, sliced
  • 3 garlic cloves, minced
  • 1 tablespoon minced fresh thyme or 1 teaspoon dried thyme
  • 1/4 teaspoon salt, divided
  • 1/4 teaspoon pepper, divided
  • 1/4 cup olive oil, divided
  • 1 cup port wine
  • 2-1/2 cups coarsely chopped fresh spinach
  • 4 medium portobello mushrooms
  • 1/2 cup crumbled blue cheese

Nutritional Facts

1 each: 267 calories, 19g fat (5g saturated fat), 13mg cholesterol, 408mg sodium, 13g carbohydrate (5g sugars, 2g fiber), 7g protein.


  1. In a large skillet, cook the onion, garlic, thyme and 1/8 teaspoon salt and pepper in 2 tablespoons oil over medium heat for 15-20 minutes or until onion is golden brown, stirring occasionally. Stir in wine. Bring to a boil; cook until liquid is reduced by two-thirds, about 8-10 minutes. Add spinach; cook until wilted.
  2. Remove and discard stems and gills from mushrooms. In a large skillet, cook mushrooms in remaining oil over medium heat for 2 minutes on each side. Sprinkle with remaining salt and pepper.
  3. Fill mushrooms with onion mixture; cover and cook for 5-7 minutes or just until mushrooms are tender. Sprinkle with cheese; cover and cook 2 minutes longer or until cheese is melted. Yield: 4 servings.
Originally published as Onion-Stuffed Portobellos in Taste of Home Christmas Annual Annual 2010, p95

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