- 1 serving cooking spray
- 12 whole fresh mushrooms, tough ends trimmed
- 1 tablespoon vegetable oil
- 1 tablespoon minced garlic
- 1 (8 ounce) package cream cheese, softened
- ¼ cup grated Parmesan cheese
- ¼ teaspoon ground black pepper
- ¼ teaspoon onion powder
- ¼ teaspoon cayenne pepper
