1. Tear bread into items; place in meals processor. Course of 30 seconds, or till crumbs are shaped. Switch to small bowl; put aside.
2. Take away stems from mushrooms; reserve caps. Place mushroom stems, celery, onion, and garlic in meals processor; course of utilizing on/off pulses till greens are finely chopped.
3. Spray giant skillet with nonstick cooking spray. Add vegetable combination; cook dinner and stir over medium warmth 5 minutes, or till onion is tender. Take away to bowl. Stir in bread crumbs, Worcestershire sauce, marjoram, and crimson pepper.
4. Fill mushroom caps evenly with combination, urgent down firmly. Place about 1/2 inch aside in shallow baking pan. Spray tops with cooking spray. Sprinkle with paprika.
5. Preheat oven to 350°F. Bake quarter-hour, or till heated by way of.
Be aware: Mushrooms will be stuffed as much as sooner or later forward. Refrigerate crammed mushroom caps, coated, till able to serve. Bake in preheated 300°F oven 20 minutes, or till heated by way of.
