Preheat oven to 400 degrees
Rinse your portabella mushroom caps with water and pat dry with a paper towel
Remove the stems and scrape off the gills using a spoon
Brush the olive oil all over the front and back of the mushroom caps
Season with some salt and pepper
Place mushroom caps in the oven and roast about 5-10 minutes each side (mine were done within 10 minutes or 5 minutes each side)
Meanwhile, saute the spinach with a little olive oil until spinach is fully wilted
Set spinach aside until the rest of the ingredients are done
Meanwhile heat some water in a pot until boiling
Once boiling, take a spoon and swirl the water in a circle
Take the spoon out and drop the egg in
The egg will take its shape from the swirling water and cook in about 2-4 minutes
Take your cooked portabella mushroom caps and set on a plate
Top the portabella mushroom caps with some of the sauteed spinach- about half the spinach on each
Remove the poached eggs from the water and place on top of the spinach
Sprinkle with some paprika or top with hollandaise sauce
Serve and enjoy :)