Portobello Pizzettas

Yield:	12 Servings
Categories:	Appetizers, Italian, Cheese

5	oz	Chopped spinach; frozen, thawed
1 1/2	c	Mozzarella; grated
1/2	c	Pepperoni; coarsely chopped
1	ts	Dried basil; crushed
1/4	ts	Coarsely ground pepper
12	sm	Portobello mushrooms; 3-4" diameter
2	tb	Butter; melted