Spinach Stuffed Portobello Mushrooms

stuffed portobello mushrooms

I love these stuffed portobello mushrooms – they are delicious and so pretty. They can work well as an appetizer when you host, or just serve them as a tasty side dish, as I did tonight.

Stuffed and baked portobello mushrooms can become soggy. To avoid sogginess:
1. Wipe clean, don’t wash them (they absorb water).
2. Pre-broil to release some of the water.
3. In the final stage of baking or broiling, broil or bake briefly, just until topping is browned. Baking too long will result in mushy mushrooms that have released their liquid into your filling. If that happens, the only thing you can do is to carefully drain the liquid, and place the mushrooms on paper towels to soak as much of the liquid as you can.

Spinach Stuffed Portobello Mushrooms
 
Prep and Cool time
Cook time
Total time
 
Author:
Recipe type: Appetizer
Yield: 4 servings
Ingredients
  • 4 Portobello mushroom caps, stems removed, wiped clean
  • Olive oil cooking spray
  • 1 teaspoon kosher salt, divided
  • ¼ teaspoon black pepper, divided
  • 10oz frozen chopped spinach
  • 2 tablespoons olive oil, divided
  • 1 small onion, finely chopped (6oz)
  • 1 tablespoon minced garlic
  • ¼ cup grated Parmesan
Instructions
  1. Preheat broiler, setting temperature to high. Set oven rack in the middle of the oven. Line a baking sheet with foil.
  2. Spray the mushroom caps with olive oil cooking spray on both sides. Sprinkle with ½ teaspoon kosher salt and ⅛ teaspoon black pepper. Broil 5 minutes on each side, or until just tender.
  3. Meanwhile, defrost spinach in the microwave according to the directions on the package (my package said to cut a small slit in the wrapper, place on a microwave-safe plate and microwave for 4-6 minutes). Place in a colander to drain. When cool enough to handle, press on the cooked spinach with your hands and extract as much water as possible out of it. Repeat this until you're sure you can no longer extract more water.
  4. Remove mushrooms from oven. Heat 1 tablespoon olive oil in a large skillet over medium heat, about 3 minutes. Add the onion and cook 5-7 minutes, stirring occasionally, until golden. Add the garlic, spinach, ½ teaspoon kosher salt and ⅛ teaspoon black pepper and cook, stirring to combine everything, 1-2 more minutes. Remove from heat and allow to cool a few minutes, then mix in the Parmesan.
  5. Evenly distribute the spinach mixture among the mushrooms. Don't press down on the filling - it's prettier when it's piled high on top of the mushrooms. Place back under the broiler for 2-3 minutes, or until filling is golden.
Nutrition Per Serving
Serving size: 1 mushroom; Calories: 153; Fat: 9g; Carbohydrates: 13.5g; Sugar: 2g; Sodium: 441mg; Fiber: 4.2g; Protein: 7.8g

 

Spinach Stuffed Portobello

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