Stuffed Portobello

The fresh ingredients are certain to make this easy and quick meal a hit.

Ingredients

spaghetti or marinara sauce, divided
large Portobello mushroom caps, soaked in water then rinsed
Tablespoons olive oil
salt and freshly ground black pepper to taste
pound baby spinach leaves
minced garlic clove
fresh ground nutmeg
ball of fresh mozzarella cheese, sliced into ¼ inch thick pieces, enough to cove
grated parmesan cheese