Step 1

Preheat the oven to 450 degrees Fahrenheit.

Step 2

Clean the portobello mushrooms and remove the stems. Place them on a parchment paper-lined baking sheet gill side up. Drizzle the tops with the olive oil and use your hands to rub on the bottoms. Sprinkle with about 1/2 teaspoon kosher salt divided among the mushroom caps. Place the baking sheet in the oven and roast for 15 minutes until tender. Once baked, drain the caps of the excess liquid.

Step 3

Meanwhile, thaw the spinach. Use a strainer to squeeze out as much moisture as possible. Mince the shallot. Thinly slice the green onions. Roughly chop the artichokes. In a medium bowl, mix together the spinach, shallot, green onions, and artichokes with the Greek yogurt, mayonnaise, Parmesan cheese, dried dill, garlic powder, kosher salt and several grinds black pepper.

Step 4

Stuff the mushrooms: Turn down the oven heat to 425 degrees Fahrenheit. Spread the filling into the roasted mushrooms caps (there may be a little left over). Top with a little more Parmesan cheese on each cap, then sprinkle with the Italian panko. If desired, sprinkle with a little paprika or smoked paprika for color.

Step 5

Bake 10 minutes until the breadcrumbs are golden. Serve immediately.