Portobello + Artichoke + Walnut Pesto Panini

Portobello + Artichoke + Walnut Pesto Panini

Serves: 4

Ingredients:

  • 4 tbs olive oil, divided, plus extra for brushing
  • 1 lg red onion, thinly sliced
  • sea salt
  • black pepper
  • 4 portobello mushrooms, stemmed and cut into 1/4″ slices
  • artichoke walnut pesto
  • 4 ciabatta rolls, cut in half
  • 1 lg tomato, sliced
  • 1/2 cup spinach or arugula

Directions:

  1. Make or defrost the artichoke walnut pesto.
  2. In a skillet, heat 2 tbs oil over medium heat. Add onions and let cook 20-30 minutes, until tender and carmelized. Season with salt, and transfer to a bowl.
  3. When the onions have 15 minutes to go, heat remaining 2 tbs oil in a separate skillet. Saute mushrooms over medium-high heat. Season with salt and pepper to taste and cook until lightly browned and the juices have evaporated.
  4. Heat a panini press on medium heat.
  5. Assemble: Spread the artichoke walnut pesto on each slice of bread and layer onions, mushrooms, tomatoes, and spinach / arugula in between the slices.
  6. Cook on the panini press for a minute or two (be careful not to over-toast the bread as ciabatta rolls can become hard).
  7. Slice panini in half diagonally and serve immediately.

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