These stuffed portobello mushrooms bake twice: the meaty caps go in first, then get piled with sun-dried tomatoes, kalamata olives, kale and basil and topped with a cashew almond parmesan for a second bake. Easy for a weeknight, pretty enough for guests.
Remove the stems and gills from the mushrooms and wipe the outsides clean. Place them gill side up on a baking sheet, drizzle with some of the olive oil and season with salt and pepper. Bake for 15 minutes.
While the mushrooms bake, heat the remaining olive oil in a skillet over medium-high heat. Add the onion and cook until translucent. Add the sun-dried tomatoes, garlic and olives and cook for 3 minutes. Add the kale and cook for 3 minutes more. Set aside.
Pulse the almonds, cashews, nutritional yeast, salt and garlic powder in a food processor until finely chopped.
Spoon the sun-dried tomato mixture into the baked mushrooms and top with the cheese sprinkle. Bake until lightly toasted, about 7 minutes.
Top with the basil and serve immediately.
Notes
Prep Tip: Scrape out the gills with a small spoon so the caps hold more filling.
Grill Method: Grill the mushrooms instead of baking them, then add the filling and grill again until the tops are lightly toasted.
Serving Ideas: For appetizers, use stemmed button mushrooms and spread the filling across several of them, shortening the first bake since they're smaller.
Storing: Store leftover mushrooms in an airtight container in the fridge for up to 3 days. Reheat at 350 °F for 10 to 15 minutes, until warmed through.