Potobello Pizzas

Yield:	4 Servings
Categories:

4		Fresh portobello mushrooms 3-5 inches wide
3		Canned chipotie chilies in adobo sauce
3	tb	Oyster sauce
1/3	c	Vegetable oil
1	lg	Red onion; sliced
3		Poblano chilies or green bell peppers; sliced
		Salt
4	oz	Mexican chihuahua or other good melting cheese